Represents an image area widget for displaying an image. More...

#include <ImageArea.h>

Inheritance diagram for PhWidgets::ImageArea:

Classes
struct	ArgColor
	Contains resource IDs for arguments of type `PgColor_t`. More...

struct	ArgLong
	Contains resource IDs for arguments of type long. More...

struct	ArgPImage
	Contains resource IDs for arguments of type `PhImage_t`. More...

struct	ArgRect
	Contains resource IDs for arguments of type `PhRect_t`. More...

struct	ArgShort
	Contains resource IDs for arguments of type short. More...

struct	Arguments
	Contains resource IDs for all ImageArea arguments. More...

struct	Callback
	Contains resource IDs for callbacks of type `PtCallback_t`. More...

struct	Callbacks
	Contains resource IDs for all ImageArea callbacks. More...

struct	Flags
	Contains flags for all ImageArea resources. More...

struct	ThisArgs
	Contains resource IDs for ImageArea arguments. More...

struct	ThisCallbacks
	Contains resource IDs for ImageArea callbacks. More...

struct	ThisFlags
	Contains flags for ImageArea resources. More...

Public Member Functions
	ImageArea (int abn)
	(constructor) More...

	ImageArea (PtWidget_t *wdg)
	(constructor) More...

	ImageArea (const ImageArea &other)
	(copy constructor) More...

ImageArea &	operator= (const ImageArea &other)
	Assigns value in ImageArea. More...

Public Member Functions inherited from PhWidgets::Container
	Container (int abn)
	(constructor) More...

	Container (PtWidget_t *wdg)
	(constructor) More...

	Container (const Container &other)
	(copy constructor) More...

Container &	operator= (const Container &other)
	Assigns value in Container widget. More...

Public Member Functions inherited from PhWidgets::Basic
	Basic (int abn)
	(constructor) More...

	Basic (PtWidget_t *wdg)
	(constructor) More...

	Basic (const Basic &other)
	(copy constructor) More...

Basic &	operator= (const Basic &other)
	Assigns value in Basic widget. More...

void	OnActivated (PtCallbackInfo_t *info)
	Raises the Basic::Activate event.

void	OnArmed (PtCallbackInfo_t *info)
	Raises the Basic::Arm event.

void	OnDisarmed (PtCallbackInfo_t *info)
	Raises the Basic::Disarm event.

void	OnGotFocused (PtCallbackInfo_t *info)
	Raises the Basic::GotFocus event.

void	OnLostFocus (PtCallbackInfo_t *info)
	Raises the Basic::LostFocus event.

void	OnMenu (PtCallbackInfo_t *info)
	Raises the Basic::Menu event.

void	OnRepeat (PtCallbackInfo_t *info)
	Raises the Basic::Repeat event.

Public Member Functions inherited from PhWidgets::Widget
	Widget (int abn)
	(constructor) More...

	Widget (PtWidget_t *wdg)
	(constructor) More...

	Widget (const Widget &other)
	(copy constructor) More...

void	swap (Widget &other)
	Exchanges the contents of *this and other. More...

Widget &	operator= (const Widget &other)
	Assigns value in Widget. More...

Widget &	operator= (PtWidget_t *wdg)
	Assigns value in Widget. More...

bool	operator== (const Widget &other) const
	Compares Widgets. More...

bool	operator!= (const Widget &other) const
	Compares Widgets. More...

bool	operator< (const Widget &other) const
	Compares Widgets. More...

bool	operator<= (const Widget &other) const
	Compares Widgets. More...

bool	operator> (const Widget &other) const
	Compares Widgets. More...

bool	operator>= (const Widget &other) const
	Compares Widgets. More...

PtWidget_t *	get () const
	Returns the stored pointer.

	operator PtWidget_t * ()
	Converts Widget to Photon widget pointer.

	operator const PtWidget_t * () const
	Converts Widget to constant Photon widget pointer.

void	BringToFront ()
	Brings the widget to the front of the z-order. More...

bool	Contains (const Widget &widget)
	Retrieves a value indicating whether the specified widget is a child of the widget. More...

bool	Focus ()
	Sets input focus to the widget. More...

Widget	GetNextWidget (const Widget &widget, bool forward=true) const
	Retrieves the next widget forward or back in the tab order of child widgets. More...

void	Hide ()
	Conceals the widget from the user. More...

void	Invalidate (PhRect_t rc, bool invalidateChildren=false)
	Invalidates a specific region of the widget and causes a paint message to be sent to the widget. More...

void	Invalidate (bool invalidateChildren=false)
	Invalidates a specific region of the widget and causes a paint message to be sent to the widget. More...

bool	Realize ()
	Make the widget and its children visible and possibly interactive. More...

void	Refresh ()
	Forces the widget to invalidate its client area and immediately redraw itself and any child widgets. More...

void	SendToBack ()
	Sends the widget to the back of the z-order. More...

void	SetBounds (short x, short y, unsigned short width, unsigned short height)
	Sets the bounds of the widget to the specified location and size. More...

void	SetBounds (short x, short y)
	Sets the bounds of the widget to the specified location. More...

void	Select ()
	Activates the widget. More...

void	Show ()
	Displays the widget to the user. More...

bool	Unrealize ()
	Unrealizes the widget and all its children. More...

void	OnDestroyed (PtCallbackInfo_t *info)
	Raises the Widget::Destroyed event.

void	OnBlocked (PtCallbackInfo_t *info)
	Raises the Widget::Blocked event.

void	OnDragDrop (PtCallbackInfo_t *info)
	Raises the Widget::DragDrop event.

void	OnOutbound (PtCallbackInfo_t *info)
	Raises the Widget::Outbound event.

void	OnRealized (PtCallbackInfo_t *info)
	Raises the Widget::Realized event.

void	OnUnrealized (PtCallbackInfo_t *info)
	Raises the Widget::Unrealized event.

Public Attributes
WidgetResourcesSingleton	resource
	Resources of the ImageArea. More...

Properties
Properties are used to simplify use of widget resources.
property< bool >::bind< ImageArea, &ImageArea::getAutoScale, &ImageArea::setAutoScale >	AutoScale
	Determines whether or not to use automatically scale the image to fit the size of the widget. More...

phproperty< Drawing::Color >::bind< ImageArea, ArgColor::eArgColor, Arguments::grid_color >	GridColor
	Gets or sets the color of the grid, if displayed. More...

phproperty< long >::bind< ImageArea, ArgLong::eArgLong, Arguments::grid_threshold >	GridThreshold
	Gets or sets the grid threshold. More...

property< Drawing::Image >::bind< ImageArea, &ImageArea::getImage, &ImageArea::setImage >	Image
	Gets or sets the image that is displayed by ImageArea. More...

phproperty< long >::bind< ImageArea, ArgLong::eArgLong, Arguments::zoom >	ZoomingFactor
	Gets or sets the zooming factor. More...

Events
phwidgets_event< ImageArea, ImageArea::Callbacks::drag >	Drag

phwidgets_event< ImageArea, ImageArea::Callbacks::movement >	Movement

phwidgets_event< ImageArea, ImageArea::Callbacks::scrolled >	Scrolled

phwidgets_event< ImageArea, ImageArea::Callbacks::selection >	Selection

Public Attributes inherited from PhWidgets::Container
WidgetResourcesSingleton	resource
	Resources of the Container. More...

property< Widget >::bind< Container, &Container::getActiveWidget, &Container::setActiveWidget >	ActiveWidget
	Gets or sets the active widget on the Container widget. More...

phwidgets_event< Container, Container::Callbacks::child_added_removed >	ChildAddedRemoved

phwidgets_event< Container, Container::Callbacks::child_getting_focus >	ChildGettingFocus

phwidgets_event< Container, Container::Callbacks::child_losing_focus >	ChildLosingFocus

phwidgets_event< Container, Container::Callbacks::layout >	LayoutChanged

phwidgets_event< Container, Container::Callbacks::resize >	Resize

Public Attributes inherited from PhWidgets::Basic
WidgetResourcesSingleton	resource
	Resources of the Basic. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::BevelColor >	BevelColor
	Gets or sets the main color of the bevel. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::DrawingColor >	Color
	Gets or sets the foreground or drawing color for the widget. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::DarkBevelColor >	DarkBevelColor
	Gets or sets the dark outermost color used when applying a bevel to a widget. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::DarkFillColor >	DarkFillColor
	Gets or sets the dark color with which a gradient (if applied) goes. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::FillColor >	FillColor
	Gets or sets the fill color for the widget. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::InlineColor >	InlineColor
	Gets or sets the color of the inline of the border. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::LightBevelColor >	LightBevelColor
	Gets or sets the light outermost color used when applying a bevel to a widget. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::LightFillColor >	LightFillColor
	Gets or sets the light color with which a gradient (if applied) goes. More...

phproperty< unsigned short >::bind< Basic, Arguments< unsigned short >::Scalar, Arguments<>::MarginHeight >	MarginHeight
	Gets or sets the amount of vertical space between the widget's canvas and the widget's border. More...

phproperty< unsigned short >::bind< Basic, Arguments< unsigned short >::Scalar, Arguments<>::MarginWidth >	MarginWidth
	Gets or sets the amount of horizontal space between the widget's canvas and the widget's border. More...

phproperty< Drawing::Color >::bind< Basic, Arguments< PgColor_t >::ColorResource, Arguments<>::OutlineColor >	OutlineColor
	Gets or sets the color of the outline of the border. More...

phbitmask< unsigned long, Flags::Basic::type >::bind< Basic, Arguments< unsigned long >::Scalar, Arguments<>::BasicFlags >	BasicFlags
	Gets or sets basic flags inherited by all widgets. See Flags::Basic::type.

phwidgets_event< Basic, Basic::Callbacks<>::Activate >	Activate
	Occurs when you release the left pointer button while pointing at an armed widget.

phwidgets_event< Basic, Basic::Callbacks<>::Arm >	Arm
	Occurs when you press the left pointer button while pointing at the widget.

phwidgets_event< Basic, Basic::Callbacks<>::Disarm >	Disarm
	Occurs when you release the left pointer button when not pointing at an armed widget.

phwidgets_event< Basic, Basic::Callbacks<>::GotFocus >	GotFocus
	Occurs when a widget gets focus or its focus status changes.

phwidgets_event< Basic, Basic::Callbacks<>::LostFocus >	LostFocus
	Occurs when a widget loses focus.

phwidgets_event< Basic, Basic::Callbacks<>::Menu >	Menu
	Occurs when you press the right button while the pointer is on top of the widget.

phwidgets_event< Basic, Basic::Callbacks<>::Repeat >	Repeat
	Documentation in progress...

Public Attributes inherited from PhWidgets::Widget
WidgetResourcesSingleton	resource
	Resources of the Widget. More...

property< bool >::bind< Widget, &Widget::getAllowDrop, &Widget::setAllowDrop >	AllowDrop
	Gets or sets a value indicating whether the widget can accept data that the user drags onto it. More...

phbitmask< unsigned, Flags::Anchor::type, Flags::Anchor::All >::bind< Widget, Arguments< unsigned >::Flag, Arguments< unsigned >::AnchorFlags >	Anchor
	Gets or sets flags specifying how the widget is anchored to its parent. More...

phproperty< unsigned short >::bind< Widget, Arguments< unsigned short >::Scalar, Arguments< unsigned short >::BevelWidth >	BevelWidth
	Gets or sets the bevel width of the widget. More...

property< short, property<>::ro >::bind< Widget, &Widget::getBottom >	Bottom
	Gets the distance, in pixels, between the bottom edge of the widget and the top edge of its container's client area. More...

property< PhArea_t >::bind< Widget, &Widget::getBounds, &Widget::setBounds >	Bounds
	Gets or sets the size and location of the widget including its nonclient elements, in pixels, relative to the parent widget. More...

property< bool, property<>::ro >::bind< Widget, &Widget::getCanFocus >	CanFocus
	Gets a value indicating whether the widget can receive focus. More...

property< bool, property<>::ro >::bind< Widget, &Widget::getCanSelect >	CanSelect
	Gets a value indicating whether the widget can be selected. More...

property< bool, property<>::ro >::bind< Widget, &Widget::getContainsFocus >	ContainsFocus
	Gets a value indicating whether the widget, or one of its child widgets, currently has the input focus. More...

property< PhWidgets::Cursor >::bind< Widget, &Widget::getCursor, &Widget::setCursor >	Cursor
	Gets or sets the cursor that is displayed when the mouse pointer is over the widget. More...

phproperty< Drawing::Color >::bind< Widget, Arguments< PgColor_t >::Color, Arguments< PgColor_t >::CursorColor >	CursorColor
	Gets or sets the color of the cursor pointer when it's inside the widget. More...

property< bool >::bind< Widget, &Widget::getEnabled, &Widget::setEnabled >	Enabled
	Gets or sets a value indicating whether the widget can respond to user interaction. More...

property< bool, property<>::ro >::bind< Widget, &Widget::getFocused >	Focused
	Gets a value indicating whether the widget has input focus. More...

property< bool, property<>::ro >::bind< Widget, &Widget::hasChildren >	HasChildren
	Gets a value indicating whether the widget contains one or more child widgets. More...

property< bool, property<>::ro >::bind< Widget, &Widget::hasParent >	HasParent
	Gets a value indicating whether the widget has parent. More...

phproperty< unsigned short >::bind< Widget, Arguments< unsigned short >::Scalar, Arguments< unsigned short >::Height >	Height
	Gets or sets the height of the widget. More...

property< std::string >::bind< Widget, &Widget::getHelpTopic, &Widget::setHelpTopic >	HelpTopic
	Gets or sets the help topic of the widget. More...

property< bool, property<>::ro >::bind< Widget, &Widget::getIsRealized >	IsRealized
	Gets or sets a value indicating whether the widget is realized. More...

property< short >::bind< Widget, &Widget::getLeft, &Widget::setLeft >	Left
	Gets or sets the distance, in pixels, between the left edge of the widget and the left edge of its container's client area. More...

property< PhPoint_t >::bind< Widget, &Widget::getLocation, &Widget::setLocation >	Location
	Gets or sets the coordinates of the upper-left corner of the widget relative to the upper-left corner of its container. More...

property< PtWidget_t * >::bind< Widget, &Widget::getParent, &Widget::setParent >	Parent
	Gets or sets the parent container of the widget. More...

phproperty< PhPoint_t >::bind< Widget, Arguments< PhPoint_t >::Struct, Arguments< PhPoint_t >::Position >	Position
	Gets or sets the absolute coordinates of the upper-left corner of the widget. More...

property< short, property<>::ro >::bind< Widget, &Widget::getRight >	Right
	Gets the distance, in pixels, between the right edge of the widget and the left edge of its container's client area. More...

phproperty< PhDim_t >::bind< Widget, Arguments< PhDim_t >::Struct, Arguments< PhDim_t >::Dimension >	Size
	Gets or sets the size of the widget. More...

tag_property< Widget, &Widget::getTag, &Widget::setTag >	Tag
	Gets or sets the resource that contains data about the widget. More...

property< short >::bind< Widget, &Widget::getTop, &Widget::setTop >	Top
	Gets or sets the distance, in pixels, between the top edge of the widget and the top edge of its container's client area. More...

property< bool >::bind< Widget, &Widget::getVisible, &Widget::setVisible >	Visible
	Gets or sets a value indicating whether the widget and all its child widgets are displayed. More...

property< std::set< PhWidgets::Widget >, property<>::ro >::bind< Widget, &Widget::getWidgets >	Widgets
	Gets the list of widgets contained within the widget. More...

phproperty< unsigned short >::bind< Widget, Arguments< unsigned short >::Scalar, Arguments< unsigned short >::Width >	Width
	Gets or sets the width of the widget. More...

phbitmask< unsigned long, Flags::Extended::type >::bind< Widget, Arguments< unsigned long >::Flag, Arguments< unsigned long >::ExtendedFlags >	ExtendedFlags
	Gets or sets extended flags inherited by all widgets. See Flags::Extended::type.

phbitmask< long, Flags::type >::bind< Widget, Arguments< long >::Flag, Arguments< long >::Flags >	WidgetFlags
	Gets or sets flags inherited by all widgets. More...

phbitmask< long, Flags::Resize::type >::bind< Widget, Arguments< long >::Flag, Arguments< long >::Resiztype >	Resiztype
	Gets or sets flags to control a widget's resize policy. See Flags::Resize::type.

phwidgets_event< Widget, Widget::Callbacks<>::Destroyed >	Destroyed
	Occurs when the widget is destroyed.

phwidgets_event< Widget, Widget::Callbacks<>::Blocked >	Blocked
	Occurs when the widget is blocked.

phwidgets_event< Widget, Widget::Callbacks<>::DragAndDrop >	DragDrop
	Occurs when a drag-and-drop operation is completed.

phwidgets_event< Widget, Widget::Callbacks<>::IsDestroyed >	IsDestroyed
	Occurs when the widget's resources are being released.

phwidgets_event< Widget, Widget::Callbacks<>::Outbound >	Outbound
	Occurs when you press the pointer button on the widget and then move out of the "hot spot" with the button still depressed.

phwidgets_event< Widget, Widget::Callbacks<>::Realized >	Realized
	Occurs when the widget is realized.

phwidgets_event< Widget, Widget::Callbacks<>::Unrealized >	Unrealized
	Occurs when the widget is unrealized.

Additional Inherited Members
Public Types inherited from PhWidgets::Widget
typedef phevent::ph_callback_t	callback_t
	An event handler that is raised when an event occur.

Static Public Member Functions inherited from PhWidgets::Widget
static void	Update ()
	Causes the Photon microGUI to redraw the all invalidated regions. More...

Detailed Description

Represents an image area widget for displaying an image.

ImageArea is an area in which you can display an image. You can select an area, zoom in and out, and scroll if the image is too large to fit in the area. You can optionally display a grid when you've zoomed in past a specified amount.

Note: ImageArea can not handle alpha images.

See also

Constructor & Destructor Documentation

◆ ImageArea() [1/3]

PhWidgets::ImageArea::ImageArea ( int abn )

explicit

(constructor)

Constructs a ImageArea by ID.

Parameters

[in] abn ID given by PhAB to widget (like 'ABN_WIDGET_NAME').

◆ ImageArea() [2/3]

PhWidgets::ImageArea::ImageArea ( PtWidget_t * wdg )

explicit

(constructor)

Constructs a ImageArea by pointer to widget.

Parameters

[in] wdg pointer to Photon widget.

◆ ImageArea() [3/3]

PhWidgets::ImageArea::ImageArea ( const ImageArea & other )

(copy constructor)

Constructs a ImageArea by copy.

Parameters

[in] other another ImageArea to be used as source to initialize the elements of the container with.

Member Function Documentation

◆ operator=()

ImageArea & PhWidgets::ImageArea::operator= ( const ImageArea & other )

Assigns value in ImageArea.

Replaces the contents of the ImageArea.

Parameters

[in] other another ImageArea to use as data source.

Member Data Documentation

◆ AutoScale

property<bool>::bind<ImageArea, &ImageArea::getAutoScale, &ImageArea::setAutoScale> PhWidgets::ImageArea::AutoScale

Determines whether or not to use automatically scale the image to fit the size of the widget.

Property Value

‍bool

true if the image within the ImageArea is stretched or shrunk to fit the size of the ImageArea; otherwise, false. The default is false.

See also

Image

◆ GridColor

phproperty<Drawing::Color>::bind<ImageArea, ArgColor::eArgColor, Arguments::grid_color> PhWidgets::ImageArea::GridColor

Gets or sets the color of the grid, if displayed.

Property Value

‍Drawing::Color

A Drawing::Color that represents the color of the grid, if displayed.

See also

◆ GridThreshold

phproperty<long>::bind<ImageArea, ArgLong::eArgLong, Arguments::grid_threshold> PhWidgets::ImageArea::GridThreshold

Gets or sets the grid threshold.

Property Value

‍long

A long that represents the grid threshold, expressed as a fixed-point 16.16 number.

Remarks: If the zooming factor (ImageArea::ZoomingFactor) is greater than this threshold, the grid is displayed.

See also

ZoomingFactor

◆ Image

property<Drawing::Image>::bind<ImageArea, &ImageArea::getImage, &ImageArea::setImage> PhWidgets::ImageArea::Image

Gets or sets the image that is displayed by ImageArea.

Property Value

‍Drawing::Image

The Drawing::Image to display.

Examples

void CreateBitmapAtRuntime( PtWidget_t *ptwidget, void *, PtCallbackInfo_t * )
{
    using namespace PhWidgets;
 
    Widget this_widget(ptwidget);
 
    // constructing new ImageArea
    ImageArea imageArea1;
 
    imageArea1.Size = PhDim_t({210, 110});
    imageArea1.Parent = this_widget;
 
    Drawing::Image flag = Drawing::Image::FromFile("./flag_rus.jpg");
    imageArea1.Image = flag;
}

Remarks: The Image property is set to the Drawing::Image to display. You can do this either at design time or at run time.

Note: If you want to use the same image in multiple ImageArea widgets, create a clone of the image for each ImageArea. Accessing the same image from multiple widgets causes an exception to occur.

See also

ImageLocation

◆ resource

WidgetResourcesSingleton PhWidgets::ImageArea::resource

Resources of the ImageArea.

See also

Widget::resource

◆ ZoomingFactor

phproperty<long>::bind<ImageArea, ArgLong::eArgLong, Arguments::zoom> PhWidgets::ImageArea::ZoomingFactor

Gets or sets the zooming factor.

Property Value

‍long

A long that represents the zooming factor, expressed as a fixed-point 16.16 number.

See also

GridThreshold

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

src/ImageArea.h

Classes

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ImageArea() [1/3]

◆ ImageArea() [2/3]

◆ ImageArea() [3/3]

Member Function Documentation

◆ operator=()

Member Data Documentation

◆ AutoScale

Property Value

◆ GridColor

Property Value

◆ GridThreshold

Property Value

◆ Image

Property Value

Examples

◆ resource

◆ ZoomingFactor

Property Value