wxWidgets: wxRichTextImage Class Reference

| Version: 3.2.7

Public Member Functions | Protected Attributes | List of all members
wxRichTextImage Class Reference
Class List by Category » Rich Text

`#include <wx/richtext/richtextbuffer.h>`

Inheritance diagram for wxRichTextImage:
[legend]

## Detailed Description

This class implements a graphic object.

##

Library: wxRichText
Category: Rich Text

See also
  wxRichTextBuffer, wxRichTextCtrl, wxRichTextImageBlock

## Public Member Functions
| wxRichTextImage (wxRichTextObject *parent=NULL)
| Default constructor. More...
| wxRichTextImage (const wxImage &image, wxRichTextObject *parent=NULL, wxRichTextAttr *charStyle=NULL)
| Creates a wxRichTextImage from a wxImage. More...
| wxRichTextImage (const wxRichTextImageBlock &imageBlock, wxRichTextObject *parent=NULL, wxRichTextAttr *charStyle=NULL)
| Creates a wxRichTextImage from an image block. More...
| wxRichTextImage (const wxRichTextImage &obj)
| Copy constructor. More...
virtual bool | Draw (wxDC &dc, wxRichTextDrawingContext &context, const wxRichTextRange &range, const wxRichTextSelection &selection, const wxRect &rect, int descent, int style)
| Draw the item, within the given range. More...
virtual bool | Layout (wxDC &dc, wxRichTextDrawingContext &context, const wxRect &rect, const wxRect &parentRect, int style)
| Lay the item out at the specified position with the given size constraint. More...
virtual bool | GetRangeSize (const wxRichTextRange &range, wxSize &size, int &descent, wxDC &dc, wxRichTextDrawingContext &context, int flags, const wxPoint &position=wxPoint(0, 0), const wxSize &parentSize=wxDefaultSize, wxArrayInt *partialExtents=NULL) const
| Returns the object size for the given range. More...
virtual wxTextAttrSize | GetNaturalSize () const
| Returns the 'natural' size for this object - the image size. More...
virtual bool | IsEmpty () const
| Returns true if the object is empty. More...
virtual bool | CanEditProperties () const
| Returns true if we can edit the object's properties via a GUI. More...
virtual bool | EditProperties (wxWindow *parent, wxRichTextBuffer *buffer)
| Edits the object's properties via a GUI. More...
virtual wxString | GetPropertiesMenuLabel () const
| Returns the label to be used for the properties context menu item. More...
virtual bool | UsesParagraphAttributes () const
| Returns true if this object takes note of paragraph attributes (text and image objects don't). More...
virtual bool | ImportFromXML (wxRichTextBuffer *buffer, wxXmlNode *node, wxRichTextXMLHandler *handler, bool *recurse)
| Imports this object from XML. More...
virtual bool | IsFloatable () const
| Returns true if this class of object is floatable. More...
virtual wxString | GetXMLNodeName () const
| Returns the XML node name of this object. More...
const wxBitmap & | GetImageCache () const
| Returns the image cache (a scaled bitmap). More...
void | SetImageCache (const wxBitmap &bitmap)
| Sets the image cache. More...
void | ResetImageCache ()
| Resets the image cache. More...
wxRichTextImageBlock & | GetImageBlock ()
| Returns the image block containing the raw data. More...
wxSize | GetOriginalImageSize () const
| Gets the original image size. More...
void | SetOriginalImageSize (const wxSize &sz)
| Sets the original image size. More...
void | Copy (const wxRichTextImage &obj)
| Copies the image object. More...
virtual wxRichTextObject * | Clone () const
| Clones the image object. More...
virtual bool | LoadImageCache (wxDC &dc, wxRichTextDrawingContext &context, wxSize &retImageSize, bool resetCache=false, const wxSize &parentSize=wxDefaultSize)
| Creates a cached image at the required size. More...
virtual bool | LoadAndScaleImageCache (wxImage &image, const wxSize &sz, wxRichTextDrawingContext &context, bool &changed)
| Do the loading and scaling. More...
int | GetImageState () const
| Gets the image state. More...
void | SetImageState (int state)
| Sets the image state. More...
Public Member Functions inherited from wxRichTextObject
| wxRichTextObject (wxRichTextObject *parent=NULL)
| Constructor, taking an optional parent pointer. More...
virtual | ~wxRichTextObject ()
virtual int | HitTest (wxDC &dc, wxRichTextDrawingContext &context, const wxPoint &pt, long &textPosition, wxRichTextObject **obj, wxRichTextObject **contextObj, int flags=0)
| Hit-testing: returns a flag indicating hit test details, plus information about position. More...
virtual bool | FindPosition (wxDC &dc, wxRichTextDrawingContext &context, long index, wxPoint &pt, int *height, bool forceLineStart)
| Finds the absolute position and row height for the given character position. More...
virtual wxSize | GetBestSize () const
| Returns the best size, i.e. the ideal starting size for this object irrespective of available space. More...
virtual wxRichTextObject * | DoSplit (long pos)
| Do a split from pos, returning an object containing the second part, and setting the first part in 'this'. More...
virtual void | CalculateRange (long start, long &end)
| Calculates the range of the object. More...
virtual bool | DeleteRange (const wxRichTextRange &range)
| Deletes the given range. More...
virtual bool | IsFloating () const
| Returns true if this object is currently floating. More...
virtual int | GetFloatDirection () const
| Returns the floating direction. More...
virtual wxString | GetTextForRange (const wxRichTextRange &range) const
| Returns any text in this object for the given range. More...
virtual bool | CanMerge (wxRichTextObject *object, wxRichTextDrawingContext &context) const
| Returns true if this object can merge itself with the given one. More...
virtual bool | Merge (wxRichTextObject *object, wxRichTextDrawingContext &context)
| Returns true if this object merged itself with the given one. More...
virtual bool | CanSplit (wxRichTextDrawingContext &context) const
| Returns true if this object can potentially be split, by virtue of having different virtual attributes for individual sub-objects. More...
virtual wxRichTextObject * | Split (wxRichTextDrawingContext &context)
| Returns the final object in the split objects if this object was split due to differences between sub-object virtual attributes. More...
virtual void | Dump (wxTextOutputStream &stream)
| Dump object data to the given output stream for debugging. More...
virtual bool | AcceptsFocus () const
| Returns true if objects of this class can accept the focus, i.e. a call to SetFocusObject is possible. More...
virtual void | Invalidate (const wxRichTextRange &invalidRange=wxRICHTEXT_ALL)
| Invalidates the object at the given range. More...
virtual bool | HandlesChildSelections () const
| Returns true if this object can handle the selections of its children, fOr example a table. More...
virtual wxRichTextSelection | GetSelection (long start, long end) const
| Returns a selection object specifying the selections between start and end character positions. More...
virtual wxSize | GetCachedSize () const
| Gets the cached object size as calculated by Layout. More...
virtual void | SetCachedSize (const wxSize &sz)
| Sets the cached object size as calculated by Layout. More...
virtual wxSize | GetMaxSize () const
| Gets the maximum object size as calculated by Layout. More...
virtual void | SetMaxSize (const wxSize &sz)
| Sets the maximum object size as calculated by Layout. More...
virtual wxSize | GetMinSize () const
| Gets the minimum object size as calculated by Layout. More...
virtual void | SetMinSize (const wxSize &sz)
| Sets the minimum object size as calculated by Layout. More...
virtual wxPoint | GetPosition () const
| Returns the object position in pixels. More...
virtual void | SetPosition (const wxPoint &pos)
| Sets the object position in pixels. More...
virtual wxPoint | GetAbsolutePosition () const
| Returns the absolute object position, by traversing up the child/parent hierarchy. More...
virtual wxRect | GetRect () const
| Returns the rectangle enclosing the object. More...
void | SetRange (const wxRichTextRange &range)
| Sets the object's range within its container. More...
const wxRichTextRange & | GetRange () const
| Returns the object's range. More...
wxRichTextRange & | GetRange ()
| Returns the object's range. More...
void | SetOwnRange (const wxRichTextRange &range)
| Set the object's own range, for a top-level object with its own position space. More...
const wxRichTextRange & | GetOwnRange () const
| Returns the object's own range (valid if top-level). More...
wxRichTextRange & | GetOwnRange ()
| Returns the object's own range (valid if top-level). More...
wxRichTextRange | GetOwnRangeIfTopLevel () const
| Returns the object's own range only if a top-level object. More...
virtual bool | IsComposite () const
| Returns true if this object is composite. More...
virtual bool | IsAtomic () const
| Returns true if no user editing can be done inside the object. More...
virtual wxRichTextObject * | GetParent () const
| Returns a pointer to the parent object. More...
virtual void | SetParent (wxRichTextObject *parent)
| Sets the pointer to the parent object. More...
virtual wxRichTextParagraphLayoutBox * | GetContainer () const
| Returns the top-level container of this object. More...
virtual wxRichTextParagraphLayoutBox * | GetParentContainer () const
| Returns the top-level container of this object. More...
virtual void | SetMargins (int margin)
| Set the margin around the object, in pixels. More...
virtual void | SetMargins (int leftMargin, int rightMargin, int topMargin, int bottomMargin)
| Set the margin around the object, in pixels. More...
virtual int | GetLeftMargin () const
| Returns the left margin of the object, in pixels. More...
virtual int | GetRightMargin () const
| Returns the right margin of the object, in pixels. More...
virtual int | GetTopMargin () const
| Returns the top margin of the object, in pixels. More...
virtual int | GetBottomMargin () const
| Returns the bottom margin of the object, in pixels. More...
virtual wxRect | GetAvailableContentArea (wxDC &dc, wxRichTextDrawingContext &context, const wxRect &outerRect) const
| Calculates the available content space in the given rectangle, given the margins, border and padding specified in the object's attributes. More...
virtual bool | LayoutToBestSize (wxDC &dc, wxRichTextDrawingContext &context, wxRichTextBuffer *buffer, const wxRichTextAttr &parentAttr, const wxRichTextAttr &attr, const wxRect &availableParentSpace, const wxRect &availableContainerSpace, int style)
| Lays out the object first with a given amount of space, and then if no width was specified in attr, lays out the object again using the minimum size. More...
virtual bool | AdjustAttributes (wxRichTextAttr &attr, wxRichTextDrawingContext &context)
| Adjusts the attributes for virtual attribute provision, collapsed borders, etc. More...
void | SetAttributes (const wxRichTextAttr &attr)
| Sets the object's attributes. More...
const wxRichTextAttr & | GetAttributes () const
| Returns the object's attributes. More...
wxRichTextAttr & | GetAttributes ()
| Returns the object's attributes. More...
wxRichTextProperties & | GetProperties ()
| Returns the object's properties. More...
const wxRichTextProperties & | GetProperties () const
| Returns the object's properties. More...
void | SetProperties (const wxRichTextProperties &props)
| Sets the object's properties. More...
void | SetDescent (int descent)
| Sets the stored descent value. More...
int | GetDescent () const
| Returns the stored descent value. More...
wxRichTextBuffer * | GetBuffer () const
| Returns the containing buffer. More...
void | SetName (const wxString &name)
| Sets the identifying name for this object as a property using the "name" key. More...
wxString | GetName () const
| Returns the identifying name for this object from the properties, using the "name" key. More...
virtual bool | IsTopLevel () const
| Returns true if this object is top-level, i.e. contains its own paragraphs, such as a text box. More...
bool | IsShown () const
| Returns true if the object will be shown, false otherwise. More...
virtual void | Show (bool show)
| Call to show or hide this object. More...
void | Copy (const wxRichTextObject &obj)
| Copies the object. More...
void | Reference ()
| Reference-counting allows us to use the same object in multiple lists (not yet used). More...
void | Dereference ()
| Reference-counting allows us to use the same object in multiple lists (not yet used). More...
virtual void | Move (const wxPoint &pt)
| Moves the object recursively, by adding the offset from old to new. More...
int | ConvertTenthsMMToPixels (wxDC &dc, int units) const
| Converts units in tenths of a millimetre to device units. More...
int | ConvertPixelsToTenthsMM (wxDC &dc, int pixels) const
| Convert units in pixels to tenths of a millimetre. More...
Public Member Functions inherited from wxObject
| wxObject ()
| Default ctor; initializes to NULL the internal reference data. More...
| wxObject (const wxObject &other)
| Copy ctor. More...
virtual | ~wxObject ()
| Destructor. More...
virtual wxClassInfo * | GetClassInfo () const
| This virtual function is redefined for every class that requires run-time type information, when using the wxDECLARE_CLASS macro (or similar). More...
wxObjectRefData * | GetRefData () const
| Returns the wxObject::m_refData pointer, i.e. the data referenced by this object. More...
bool | IsKindOf (const wxClassInfo *info) const
| Determines whether this class is a subclass of (or the same class as) the given class. More...
bool | IsSameAs (const wxObject &obj) const
| Returns true if this object has the same data pointer as obj. More...
void | Ref (const wxObject &clone)
| Makes this object refer to the data in clone. More...
void | SetRefData (wxObjectRefData *data)
| Sets the wxObject::m_refData pointer. More...
void | UnRef ()
| Decrements the reference count in the associated data, and if it is zero, deletes the data. More...
void | UnShare ()
| This is the same of AllocExclusive() but this method is public. More...
void | operator delete (void *buf)
| The delete operator is defined for debugging versions of the library only, when the identifier `__WXDEBUG__` is defined. More...
void * | operator new (size_t size, const wxString &filename=NULL, int lineNum=0)
| The new operator is defined for debugging versions of the library only, when the identifier `__WXDEBUG__` is defined. More...

## Protected Attributes
wxRichTextImageBlock | m_imageBlock
wxBitmap | m_imageCache
wxSize | m_originalImageSize
int | m_imageState
Protected Attributes inherited from wxRichTextObject
wxSize | m_size
wxSize | m_maxSize
wxSize | m_minSize
wxPoint | m_pos
int | m_descent
int | m_refCount
bool | m_show
wxRichTextObject * | m_parent
wxRichTextRange | m_range
wxRichTextRange | m_ownRange
wxRichTextAttr | m_attributes
wxRichTextProperties | m_properties
Protected Attributes inherited from wxObject
wxObjectRefData * | m_refData
| Pointer to an object which is the object's reference-counted data. More...

## Additional Inherited Members
Static Public Member Functions inherited from wxRichTextObject
static int | ConvertTenthsMMToPixels (int ppi, int units, double scale=1.0)
| Converts units in tenths of a millimetre to device units. More...
static int | ConvertPixelsToTenthsMM (int ppi, int pixels, double scale=1.0)
| Convert units in pixels to tenths of a millimetre. More...
static bool | DrawBoxAttributes (wxDC &dc, wxRichTextBuffer *buffer, const wxRichTextAttr &attr, const wxRect &boxRect, int flags=0, wxRichTextObject *obj=NULL)
| Draws the borders and background for the given rectangle and attributes. More...
static bool | DrawBorder (wxDC &dc, wxRichTextBuffer *buffer, const wxRichTextAttr &attr, const wxTextAttrBorders &borders, const wxRect &rect, int flags=0)
| Draws a border. More...
static bool | GetBoxRects (wxDC &dc, wxRichTextBuffer *buffer, const wxRichTextAttr &attr, wxRect &marginRect, wxRect &borderRect, wxRect &contentRect, wxRect &paddingRect, wxRect &outlineRect)
| Returns the various rectangles of the box model in pixels. More...
static bool | GetTotalMargin (wxDC &dc, wxRichTextBuffer *buffer, const wxRichTextAttr &attr, int &leftMargin, int &rightMargin, int &topMargin, int &bottomMargin)
| Returns the total margin for the object in pixels, taking into account margin, padding and border size. More...
static wxRect | AdjustAvailableSpace (wxDC &dc, wxRichTextBuffer *buffer, const wxRichTextAttr &parentAttr, const wxRichTextAttr &childAttr, const wxRect &availableParentSpace, const wxRect &availableContainerSpace)
| Returns the rectangle which the child has available to it given restrictions specified in the child attribute, e.g. More...
Protected Member Functions inherited from wxObject
void | AllocExclusive ()
| Ensure that this object's data is not shared with any other object. More...
virtual wxObjectRefData * | CreateRefData () const
| Creates a new instance of the wxObjectRefData-derived class specific to this object and returns it. More...
virtual wxObjectRefData * | CloneRefData (const wxObjectRefData *data) const
| Creates a new instance of the wxObjectRefData-derived class specific to this object and initializes it copying data. More...

## Constructor & Destructor Documentation

## ◆ wxRichTextImage() [1/4]

wxRichTextImage::wxRichTextImage | ( | wxRichTextObject * | parent = `NULL` | ) |
| inline

Default constructor.

## ◆ wxRichTextImage() [2/4]

wxRichTextImage::wxRichTextImage | ( | const wxImage & | image,
|  | wxRichTextObject * | parent = `NULL`,
|  | wxRichTextAttr * | charStyle = `NULL`
| ) |  |

Creates a wxRichTextImage from a wxImage.

## ◆ wxRichTextImage() [3/4]

wxRichTextImage::wxRichTextImage | ( | const wxRichTextImageBlock & | imageBlock,
|  | wxRichTextObject * | parent = `NULL`,
|  | wxRichTextAttr * | charStyle = `NULL`
| ) |  |

Creates a wxRichTextImage from an image block.

## ◆ wxRichTextImage() [4/4]

wxRichTextImage::wxRichTextImage | ( | const wxRichTextImage & | obj | ) |
| inline

Copy constructor.

## Member Function Documentation

## ◆ CanEditProperties()

virtual bool wxRichTextImage::CanEditProperties | ( |  | ) | const
| inlinevirtual

Returns true if we can edit the object's properties via a GUI.

Reimplemented from wxRichTextObject.

## ◆ Clone()

virtual wxRichTextObject* wxRichTextImage::Clone | ( |  | ) | const
| inlinevirtual

Clones the image object.

Reimplemented from wxRichTextObject.

## ◆ Copy()

void wxRichTextImage::Copy | ( | const wxRichTextImage & | obj | ) |

Copies the image object.

## ◆ Draw()

virtual bool wxRichTextImage::Draw | ( | wxDC & | dc,
|  | wxRichTextDrawingContext & | context,
|  | const wxRichTextRange & | range,
|  | const wxRichTextSelection & | selection,
|  | const wxRect & | rect,
|  | int | descent,
|  | int | style
| ) |  |
| virtual

Draw the item, within the given range.

Some objects may ignore the range (for example paragraphs) while others must obey it (lines, to implement wrapping)

Implements wxRichTextObject.

## ◆ EditProperties()

virtual bool wxRichTextImage::EditProperties | ( | wxWindow * | parent,
|  | wxRichTextBuffer * | buffer
| ) |  |
| virtual

Edits the object's properties via a GUI.

Reimplemented from wxRichTextObject.

## ◆ GetImageBlock()

wxRichTextImageBlock& wxRichTextImage::GetImageBlock | ( |  | ) |
| inline

Returns the image block containing the raw data.

## ◆ GetImageCache()

const wxBitmap& wxRichTextImage::GetImageCache | ( |  | ) | const
| inline

Returns the image cache (a scaled bitmap).

## ◆ GetImageState()

int wxRichTextImage::GetImageState | ( |  | ) | const
| inline

Gets the image state.

## ◆ GetNaturalSize()

virtual wxTextAttrSize wxRichTextImage::GetNaturalSize | ( |  | ) | const
| virtual

Returns the 'natural' size for this object - the image size.

Reimplemented from wxRichTextObject.

## ◆ GetOriginalImageSize()

wxSize wxRichTextImage::GetOriginalImageSize | ( |  | ) | const

Gets the original image size.

## ◆ GetPropertiesMenuLabel()

virtual wxString wxRichTextImage::GetPropertiesMenuLabel | ( |  | ) | const
| inlinevirtual

Returns the label to be used for the properties context menu item.

Reimplemented from wxRichTextObject.

## ◆ GetRangeSize()

virtual bool wxRichTextImage::GetRangeSize | ( | const wxRichTextRange & | range,
|  | wxSize & | size,
|  | int & | descent,
|  | wxDC & | dc,
|  | wxRichTextDrawingContext & | context,
|  | int | flags,
|  | const wxPoint & | position = `wxPoint(0, 0)`,
|  | const wxSize & | parentSize = `wxDefaultSize`,
|  | wxArrayInt * | partialExtents = `NULL`
| ) |  | const
| virtual

Returns the object size for the given range.

Returns false if the range is invalid for this object.

Implements wxRichTextObject.

## ◆ GetXMLNodeName()

virtual wxString wxRichTextImage::GetXMLNodeName | ( |  | ) | const
| inlinevirtual

Returns the XML node name of this object.

This must be overridden for wxXmlNode-base XML export to work.

Reimplemented from wxRichTextObject.

## ◆ ImportFromXML()

virtual bool wxRichTextImage::ImportFromXML | ( | wxRichTextBuffer * | buffer,
|  | wxXmlNode * | node,
|  | wxRichTextXMLHandler * | handler,
|  | bool * | recurse
| ) |  |
| virtual

Imports this object from XML.

Reimplemented from wxRichTextObject.

## ◆ IsEmpty()

virtual bool wxRichTextImage::IsEmpty | ( |  | ) | const
| inlinevirtual

Returns true if the object is empty.

Reimplemented from wxRichTextObject.

## ◆ IsFloatable()

virtual bool wxRichTextImage::IsFloatable | ( |  | ) | const
| inlinevirtual

Returns true if this class of object is floatable.

Reimplemented from wxRichTextObject.

## ◆ Layout()

virtual bool wxRichTextImage::Layout | ( | wxDC & | dc,
|  | wxRichTextDrawingContext & | context,
|  | const wxRect & | rect,
|  | const wxRect & | parentRect,
|  | int | style
| ) |  |
| virtual

Lay the item out at the specified position with the given size constraint.

Layout must set the cached size. rect is the available space for the object, and parentRect is the container that is used to determine a relative size or position (for example if a text box must be 50% of the parent text box).

Implements wxRichTextObject.

## ◆ LoadAndScaleImageCache()

virtual bool wxRichTextImage::LoadAndScaleImageCache | ( | wxImage & | image,
|  | const wxSize & | sz,
|  | wxRichTextDrawingContext & | context,
|  | bool & | changed
| ) |  |
| virtual

Do the loading and scaling.

## ◆ LoadImageCache()

virtual bool wxRichTextImage::LoadImageCache | ( | wxDC & | dc,
|  | wxRichTextDrawingContext & | context,
|  | wxSize & | retImageSize,
|  | bool | resetCache = `false`,
|  | const wxSize & | parentSize = `wxDefaultSize`
| ) |  |
| virtual

Creates a cached image at the required size.

## ◆ ResetImageCache()

void wxRichTextImage::ResetImageCache | ( |  | ) |
| inline

Resets the image cache.

## ◆ SetImageCache()

void wxRichTextImage::SetImageCache | ( | const wxBitmap & | bitmap | ) |
| inline

Sets the image cache.

## ◆ SetImageState()

void wxRichTextImage::SetImageState | ( | int | state | ) |
| inline

Sets the image state.

## ◆ SetOriginalImageSize()

void wxRichTextImage::SetOriginalImageSize | ( | const wxSize & | sz | ) |

Sets the original image size.

## ◆ UsesParagraphAttributes()

virtual bool wxRichTextImage::UsesParagraphAttributes | ( |  | ) | const
| inlinevirtual

Returns true if this object takes note of paragraph attributes (text and image objects don't).

Reimplemented from wxRichTextObject.

## Member Data Documentation

## ◆ m_imageBlock

wxRichTextImageBlock wxRichTextImage::m_imageBlock
| protected

## ◆ m_imageCache

wxBitmap wxRichTextImage::m_imageCache
| protected

## ◆ m_imageState

int wxRichTextImage::m_imageState
| protected

## ◆ m_originalImageSize

wxSize wxRichTextImage::m_originalImageSize
| protected