eric7.EricGraphics.EricGraphicsView
Module implementing a canvas view class.
Global Attributes
Classes
Functions
EricGraphicsView
Class implementing a graphics view.
Signals
- zoomValueChanged(int)
-
emitted to signal a change of the zoom value
Derived from
QGraphicsView
Class Attributes
ZoomLevelDefault |
ZoomLevels |
Class Methods
Methods
EricGraphicsView |
Constructor |
__getDiagram |
Private method to retrieve the diagram from the scene fitting it in the minimum rectangle. |
__levelForZoom |
Private method determining the zoom level index given a zoom factor. |
_getDiagramRect |
Protected method to calculate the minimum rectangle fitting the diagram. |
_getDiagramSize |
Protected method to calculate the minimum size fitting the diagram. |
autoAdjustSceneSize |
Public method to adjust the scene size to the diagram size. |
filteredItems |
Public method to filter a list of items. |
getBackgroundColor |
Public method to get the configured background color. |
getDrawingColors |
Public method to get the configured drawing colors. |
getForegroundColor |
Public method to get the configured foreground color. |
printDiagram |
Public method to print the diagram. |
resizeScene |
Public method to resize the scene. |
saveImage |
Public method to save the scene to a file. |
setSceneSize |
Public method to set the scene size. |
setZoom |
Public method to set the zoom value in percent. |
zoom |
Public method to get the current zoom factor in percent. |
zoomIn |
Public method to zoom in. |
zoomOut |
Public method to zoom out. |
zoomReset |
Public method to handle the reset the zoom value. |
Static Methods
EricGraphicsView (Constructor)
EricGraphicsView(scene, parent=None)
Constructor
- scene (QGraphicsScene)
-
reference to the scene object
- parent (QWidget)
-
parent widget
EricGraphicsView.__getDiagram
__getDiagram(rect, imageFormat="PNG", filename=None)
Private method to retrieve the diagram from the scene fitting it
in the minimum rectangle.
- rect (QRectF)
-
minimum rectangle fitting the diagram
- imageFormat (str)
-
format for the image file
- filename (str)
-
name of the file for non pixmaps
- Return:
-
paint device containing the diagram
- Return Type:
-
QPixmap or QSvgGenerator
EricGraphicsView.__levelForZoom
__levelForZoom(zoom)
Private method determining the zoom level index given a zoom factor.
- zoom (int)
-
zoom factor
- Return:
-
index of zoom factor
- Return Type:
-
int
EricGraphicsView._getDiagramRect
_getDiagramRect(border=0)
Protected method to calculate the minimum rectangle fitting the
diagram.
- border (int)
-
border width to include in the calculation
- Return:
-
the minimum rectangle
- Return Type:
-
QRectF
EricGraphicsView._getDiagramSize
_getDiagramSize(border=0)
Protected method to calculate the minimum size fitting the diagram.
- border (int)
-
border width to include in the calculation
- Return:
-
the minimum size
- Return Type:
-
QSizeF
EricGraphicsView.autoAdjustSceneSize
autoAdjustSceneSize(limit=False)
Public method to adjust the scene size to the diagram size.
- limit (bool)
-
flag indicating to limit the scene to the
initial size
EricGraphicsView.filteredItems
filteredItems(items)
Public method to filter a list of items.
- items (QGraphicsItem)
-
list of items as returned by the scene object
- Return:
-
list of interesting collision items
- Return Type:
-
QGraphicsItem
EricGraphicsView.getBackgroundColor
getBackgroundColor()
Public method to get the configured background color.
- Return:
-
background color
- Return Type:
-
QColor
EricGraphicsView.getDrawingColors
getDrawingColors()
Public method to get the configured drawing colors.
- Return:
-
tuple containing the foreground and background colors
- Return Type:
-
tuple of (QColor, QColor)
EricGraphicsView.getForegroundColor
getForegroundColor()
Public method to get the configured foreground color.
- Return:
-
foreground color
- Return Type:
-
QColor
EricGraphicsView.printDiagram
printDiagram(printer, diagramName="")
Public method to print the diagram.
- printer (QPrinter)
-
reference to a ready configured printer object
- diagramName (float)
-
name of the diagram
EricGraphicsView.resizeScene
resizeScene(amount, isWidth=True)
Public method to resize the scene.
- amount (int)
-
size increment
- isWidth (bool)
-
flag indicating width is to be resized
EricGraphicsView.saveImage
saveImage(filename, imageFormat="PNG")
Public method to save the scene to a file.
- filename (float)
-
name of the file to write the image to
- imageFormat (float)
-
format for the image file
- Return:
-
flag indicating success
- Return Type:
-
bool
EricGraphicsView.setSceneSize
setSceneSize(width, height)
Public method to set the scene size.
- width (float)
-
width for the scene
- height (float)
-
height for the scene
EricGraphicsView.setZoom
setZoom(value)
Public method to set the zoom value in percent.
- value (int)
-
zoom value in percent
EricGraphicsView.zoom
zoom()
Public method to get the current zoom factor in percent.
- Return:
-
current zoom factor in percent
- Return Type:
-
int
EricGraphicsView.zoomIn
zoomIn()
Public method to zoom in.
EricGraphicsView.zoomOut
zoomOut()
Public method to zoom out.
EricGraphicsView.zoomReset
zoomReset()
Public method to handle the reset the zoom value.