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View Class Referenceabstract
#include <Pt/Forms/View.h>
A widget that connects controls to a paint surface. More...
Inherits Widget.
Inherited by Control, and Form.
Public Member Functions | |
| Pt::uint64_t | id () const |
| Returns the ID. | |
| const std::string & | name () const |
| Returns the name. | |
| void | setName (const std::string &n) |
| Sets the name. | |
| void | setNextResponder (Responder *r) |
| Sets the next responder. | |
| bool | isConnected () const |
| Returns true if connected to a screen. | |
| Screen * | screen () |
| Returns the connected screen. | |
| const Screen * | screen () const |
| Returns the connected screen. | |
| Widget * | parent () |
| Returns the parent. | |
| const Widget * | parent () const |
| Returns the parent. | |
| bool | isDescendantOf (const Widget &top) const |
| Returns true if an descendant of @top. | |
| bool | isAncestorOf (const Widget &child) const |
| Returns true if an ancestor of @child. | |
| Widget * | hitTest (const Gfx::PointF &pos) |
| Returns the descendant hit at a position. | |
| Gfx::PointF | toParent (const Gfx::PointF &pos) const |
| Converts to parent coordinate. | |
| Gfx::PointF | fromParent (const Gfx::PointF &pos) const |
| Converts from parent coordinate. | |
| Gfx::PointF | toGlobal (const Gfx::PointF &pos) const |
| Converts to global coordinate. | |
| Gfx::PointF | fromGlobal (const Gfx::PointF &pos) const |
| Converts to local coordinate. | |
| void | addPeer (Widget &peer) |
| Adds a peer. | |
| void | removePeer (Widget &peer) |
| Removes a peer. | |
| void | invalidate () |
| Invalidates the state. | |
| virtual void | repaint (const Gfx::RectF &rect) |
| Initiates a repaint cycle. | |
| virtual void | repaint () |
| Initiates a repaint cycle. | |
| double | scaleFactor () const |
| Returns the current scale factor. | |
| bool | isVisible () const |
| Indicates whether the widget is visible. | |
| virtual void | show (bool b=true) |
| Shows the widget. | |
| bool | isEnabled () const |
| Indicates whether the widget is enabled. | |
| virtual void | enable (bool isEnable=true) |
| Enables the widget. | |
| const Gfx::PointF & | position () const |
| Returns the current position. | |
| virtual void | move (const Gfx::PointF &pos) |
| Moves the widget to a position. | |
| const Gfx::SizeF & | size () const |
| Returns the current size. | |
| const Gfx::RectF & | bounds () const |
| Returns the current inner bounds. | |
| virtual void | resize (const Gfx::SizeF &s) |
| Resizes the widget to a new size. | |
| void | setCapture (bool capture) |
| Pointer input capture. | |
| void | processEvent (const Pt::Event &ev) |
| Process event. | |
| Pt::Signal< const Pt::Event & > & | eventReceived () |
| Signals that an event needs to be processed. | |
Detailed Description
A View owns the boundary between a control hierarchy and the PaintSurface on which it is displayed. It establishes the surface and coordinate mapping for attached controls, then forwards their repaint, layout, visibility, geometry, and activation requests. Form and Control provide the usual view implementations; derive a view when a custom content host needs different forwarding or coordinate behavior.