KDE 4.0 API Reference marble/src
AbstractLayer Class Reference
#include <AbstractLayer.h>
Detailed Description
framework class for each display layer in MarbleThis class is intended to be used as a base class for all layers in Marble. It contains convienience classes and can be used as a framework for implementing new layers. So far there is default implementations for all of the virtual methods so that any developer may implement a whole new layer with the least amount of effort.
Definition at line 41 of file AbstractLayer.h.
Public Slots | |
| virtual void | paintLayer (ClipPainter *painter, const QSize &screenSize, ViewParams *viewParams) |
| virtual void | paintLayer (ClipPainter *painter, const QSize &screenSize, ViewParams *viewParams, BoundingBox bounding) |
Public Member Functions | |
| AbstractLayer (QObject *parent=0) | |
| ~AbstractLayer () | |
| bool | getPixelPosFromGeoDataPoint (GeoDataPoint geoPosition, const QSize &screenSize, ViewParams *viewParams, QPoint *position) |
| bool | visible () const |
| void | setVisible (bool visible) |
Static Public Member Functions | |
| static bool | getPixelPosFromGeoDataPoint (double _lon, double _lat, const QSize &screenSize, ViewParams *viewParams, QPoint *position) |
| static double | distance (const QPoint &, const QPoint &) |
| static double | distance (const QPointF &, const QPointF &) |
Protected Attributes | |
| QVector < AbstractLayerContainer * > * | m_containers |
Constructor & Destructor Documentation
| AbstractLayer::AbstractLayer | ( | QObject * | parent = 0 |
) |
| AbstractLayer::~AbstractLayer | ( | ) |
Member Function Documentation
| void AbstractLayer::paintLayer | ( | ClipPainter * | painter, | |
| const QSize & | screenSize, | |||
| ViewParams * | viewParams | |||
| ) | [virtual, slot] |
method to paint the whole Layer
This method is intended to keep the painting of an entire layer a simple function call.
- Parameters:
-
painter pointer to the painter that will paint this layer screenSize used to calculate the pixel position radius globe radius, used as a measure of zoom level rotAxis quaternion that represents the current rotation of the globe
Definition at line 87 of file AbstractLayer.cpp.
| void AbstractLayer::paintLayer | ( | ClipPainter * | painter, | |
| const QSize & | screenSize, | |||
| ViewParams * | viewParams, | |||
| BoundingBox | bounding | |||
| ) | [virtual, slot] |
method to paint the whole Layer
This overloaded method is intended to add the functionality of having a bounding box implementation.
- Parameters:
-
painter pointer to the painter that will paint this layer screenSize used to calculate the pixel position radius globe radius, used as a measure of zoom level rotAxis quaternion that represents the current rotation of the globe bounding BoundingBox object that represents the smallest area that contains all of the view
Reimplemented in GpsLayer.
Definition at line 100 of file AbstractLayer.cpp.
| bool AbstractLayer::getPixelPosFromGeoDataPoint | ( | double | _lon, | |
| double | _lat, | |||
| const QSize & | screenSize, | |||
| ViewParams * | viewParams, | |||
| QPoint * | position | |||
| ) | [static] |
get screen pixel position from a geographical position
Method to simplify the retrieval of the screen pixel position from a longditude and latitude. This static method is not intended for use in a layer that implements AbstractLayerData objects because AbstractLayerData has a memeber function for this purpose
- Parameters:
-
_lon the longitude of the point we want to find _lat the latitude of the point we want to find invRotAxis inversion of the Quaternion status of the globe screenSize size of the screen position QPoint that the position on screen will be saved into radius the radius of the globe, a measure of zoom level
- Returns:
trueif the pixel is visible on the screenfalseif the pixel is outside the screen
Definition at line 37 of file AbstractLayer.cpp.
| bool AbstractLayer::getPixelPosFromGeoDataPoint | ( | GeoDataPoint | geoPosition, | |
| const QSize & | screenSize, | |||
| ViewParams * | viewParams, | |||
| QPoint * | position | |||
| ) |
get screen pixel position.
Method to simplify the retreval of the screen pixel position from a GeoDataPoint object.
- Parameters:
-
geoPosition the position of the point we want to find invRotAxis inversion of the Quaternion status of the globe screenSize size of the screen position QPoint where the position on screen will be saved into radius the radius of the globe, a measure of zoom level
- Returns:
trueif the pixel is visible on the screenfalseif the pixel is outside the screen
Definition at line 57 of file AbstractLayer.cpp.
| bool AbstractLayer::visible | ( | ) | const |
Return whether the Layer is visible.
- Returns:
- The Layer visibility.
Definition at line 77 of file AbstractLayer.cpp.
| void AbstractLayer::setVisible | ( | bool | visible | ) |
Set whether the Layer is visible.
- Parameters:
-
visible visibility of the Layer
Definition at line 82 of file AbstractLayer.cpp.
convenience method to find the distance between 2 points
This is not intended to be used as a distance between 2 geoPoints, the intended use is only for measuring points on the view for drawing purposes.
Definition at line 115 of file AbstractLayer.cpp.
overloaded method to allow for double presision distance
Definition at line 122 of file AbstractLayer.cpp.
Member Data Documentation
QVector<AbstractLayerContainer *>* AbstractLayer::m_containers [protected] |
a collection of all containers that hold the data for this layer
To draw a layer you should be able to iterate through this collection and call each container's draw() function
Definition at line 182 of file AbstractLayer.h.
The documentation for this class was generated from the following files:
