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Public Types | Signals | Public Member Functions | Static Public Member Functions | Protected Member Functions | Private Types | Private Slots | Private Member Functions | Static Private Member Functions | Private Attributes

select_content::ImageView Class Reference

Inheritance diagram for select_content::ImageView:
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Collaboration diagram for select_content::ImageView:
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List of all members.

Public Types

enum  FocalPointMode { CENTER_IF_FITS, DONT_CENTER }

Signals

void manualContentRectSet (QRectF const &content_rect)

Public Member Functions

void adjustAndSetWidgetFocalPoint (QPointF const &widget_fp)
 Set the focal point in widget coordinates, after adjustring it to avoid wasting of widget space.
QPixmap const & downscaledPixmap () const
void ensureStatusTip (QString const &status_tip)
 A better version of setStatusTip().
QRectF getOccupiedWidgetRect () const
QPointF getWidgetFocalPoint () const
 Get the focal point in widget coordinates.
void hqTransformSetEnabled (bool enabled)
 Enable or disable the high-quality transform.
QTransform const & imageToVirtual () const
QTransform imageToWidget () const
 ImageView (QImage const &image, QImage const &downscaled_image, ImageTransformation const &xform, QRectF const &content_rect)
InteractionStateinteractionState ()
InteractionState const & interactionState () const
void moveTowardsIdealPosition (double pixel_length)
InteractionHandlerrootInteractionHandler ()
void setWidgetFocalPoint (QPointF const &widget_fp)
 Set the focal point in widget coordinates.
void setWidgetFocalPointWithoutMoving (QPointF new_widget_fp)
 Sets the widget focal point and recalculates the pixmap focal focal point so that the image is not moved on screen.
void setZoomLevel (double zoom)
 Sets the zoom level.
void update ()
void updateTransform (ImagePresentation const &presentation)
 Updates image-to-virtual and recalculates virtual-to-widget transformations.
void updateTransformAndFixFocalPoint (ImagePresentation const &presentation, FocalPointMode mode)
 Same as updateTransform(), but adjusts the focal point to improve screen space usage.
void updateTransformPreservingScale (ImagePresentation const &presentation)
 Same as updateTransform(), but preserves the visual image scale.
QRectF const & virtualDisplayRect () const
QTransform const & virtualToImage () const
QTransform const & virtualToWidget () const
QTransform widgetToImage () const
QTransform const & widgetToVirtual () const
double zoomLevel () const
 Returns the current zoom level.

Static Public Member Functions

static BackgroundExecutorbackgroundExecutor ()
static QImage createDownscaledImage (QImage const &image)
 A stand-alone function to create a downscaled image to be passed to the constructor.

Protected Member Functions

virtual void contextMenuEvent (QContextMenuEvent *event)
virtual void enterEvent (QEvent *event)
virtual void keyPressEvent (QKeyEvent *event)
virtual void keyReleaseEvent (QKeyEvent *event)
QRectF maxViewportRect () const
virtual void mouseMoveEvent (QMouseEvent *event)
virtual void mousePressEvent (QMouseEvent *event)
virtual void mouseReleaseEvent (QMouseEvent *event)
virtual void paintEvent (QPaintEvent *event)
virtual void resizeEvent (QResizeEvent *event)
virtual void wheelEvent (QWheelEvent *event)

Private Types

enum  Edge { LEFT = 1, RIGHT = 2, TOP = 4, BOTTOM = 8 }

Private Slots

void createContentBox ()
void removeContentBox ()

Private Member Functions

void contextMenuEvent (QContextMenuEvent *event, InteractionState &interaction)
void cornerMoveRequest (int edge_mask, QPointF const &pos)
QPointF cornerPosition (int edge_mask) const
void dragFinished ()
void edgeMoveRequest (int edge, QLineF const &line)
QLineF edgePosition (int edge) const
void forceInsideImage (QRectF &widget_rect, int edge_mask) const
void keyPressEvent (QKeyEvent *event, InteractionState &interaction)
void keyReleaseEvent (QKeyEvent *event, InteractionState &interaction)
void makeFirstFollower (InteractionHandler &handler)
void makeFirstPreceeder (InteractionHandler &handler)
void makeLastFollower (InteractionHandler &handler)
void makeLastPreceeder (InteractionHandler &handler)
void makePeerFollower (InteractionHandler &handler)
void makePeerPreceeder (InteractionHandler &handler)
void mouseMoveEvent (QMouseEvent *event, InteractionState &interaction)
void mousePressEvent (QMouseEvent *event, InteractionState &interaction)
void mouseReleaseEvent (QMouseEvent *event, InteractionState &interaction)
void onContextMenuEvent (QContextMenuEvent *event, InteractionState &interaction)
virtual void onKeyPressEvent (QKeyEvent *event, InteractionState &interaction)
virtual void onKeyReleaseEvent (QKeyEvent *event, InteractionState &interaction)
virtual void onMouseMoveEvent (QMouseEvent *event, InteractionState &interaction)
virtual void onMousePressEvent (QMouseEvent *event, InteractionState &interaction)
virtual void onMouseReleaseEvent (QMouseEvent *event, InteractionState &interaction)
virtual void onPaint (QPainter &painter, InteractionState const &interaction)
virtual void onProximityUpdate (QPointF const &screen_mouse_pos, InteractionState &interaction)
virtual void onWheelEvent (QWheelEvent *event, InteractionState &interaction)
void paint (QPainter &painter, InteractionState const &interaction)
void proximityUpdate (QPointF const &screen_mouse_pos, InteractionState &interaction)
void wheelEvent (QWheelEvent *event, InteractionState &interaction)

Static Private Member Functions

static bool defaultInteractionPermitter (InteractionState const &interaction)

Private Attributes

QRectF m_contentRect
ObjectDragHandler m_cornerHandlers [4]
DraggablePoint m_corners [4]
DragHandler m_dragHandler
ObjectDragHandler m_edgeHandlers [4]
DraggableLineSegment m_edges [4]
QSizeF m_minBoxSize
QMenu * m_pHaveContentMenu
QMenu * m_pNoContentMenu
ZoomHandler m_zoomHandler

Detailed Description

Definition at line 38 of file ImageView.h.


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

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