qarbon.qt.gui.pixmapwidget

A widget that displays an image (pixmap).

You can adjust properties like the aligment inside the widget space, aspect ratio and transformation mode (quality).

Example:

from qarbon.external.qt import QtGui
from qarbon.qt.gui.application import Application
from qarbon.qt.gui.icon import Pixmap
from qarbon.qt.gui.pixmapwidget import PixmapWidget

app = Application()
panel = QtGui.QWidget()
layout = QtGui.QGridLayout()
panel.setLayout(layout)
img = PixmapWidget()
layout.addWidget(img)

img.setPixmap(Pixmap(":/led/led_red_on.png"))
img.show()
app.exec_()

Classes

PixmapWidget

This widget displays an image (pixmap).

class qarbon.qt.gui.pixmapwidget.PixmapWidget(parent=None)

Bases: PyQt4.QtGui.QWidget

This widget displays an image (pixmap). By default the pixmap is scaled to the widget size and the aspect ratio is kept. The default alignment of the pixmap inside the widget space is horizontal left, vertical center.

DefaultAlignment = 129

DefaultAspectRatioMode = 1

DefaultTransformationMode = 1

pixmapChanged = <PyQt4.QtCore.pyqtSignal object at 0x36dda50>

Signal emited when pixmap source changes

recalculatePixmap()

paintEvent(paintEvent)

Overwrite the paintEvent from QWidget to draw the pixmap

resizeEvent(event)

sizeHint()

getPixmap()

Returns the pixmap.Returns None if no pixmap is set.

Returns:the current pixmap Return type:QtGui.QPixmap

setPixmap(pixmap)

Sets the pixmap for this widget. Setting it to None disables pixmap

Parameters:pixmap (QtGui.QPixmap) – the new pixmap

resetPixmap()

Resets the pixmap for this widget.

getAspectRatioMode()

Returns the aspect ratio to apply when drawing the pixmap.

Returns:the current aspect ratio Return type:QtCore.Qt.AspectRatioMode

setAspectRatioMode(aspect)

Sets the aspect ratio mode to apply when drawing the pixmap.

Parameters:pixmap (QtCore.Qt.AspectRatioMode) – the new aspect ratio mode

resetAspectRatioMode()

Resets the aspect ratio mode to KeepAspectRatio

getTransformationMode()

Returns the transformation mode to apply when drawing the pixmap.

Returns:the current transformation mode Return type:QtCore.Qt.TransformationMode

setTransformationMode(transformation)

Sets the transformation mode to apply when drawing the pixmap.

Parameters:pixmap (QtCore.Qt.TransformationMode) – the new transformation mode

resetTransformationMode()

Resets the transformation mode to SmoothTransformation

getAlignment()

Returns the alignment to apply when drawing the pixmap.

Returns:the current alignment Return type:QtCore.Qt.Alignment

setAlignment(alignment)

Sets the alignment to apply when drawing the pixmap.

Parameters:pixmap (QtCore.Qt.Alignment) – the new alignment

resetAlignment()

Resets the transformation mode to QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter

pixmap = <PyQt4.QtCore.pyqtProperty object at 0x36ddb10>

This property holds the widget’s pixmap

Access functions:

• PixmapWidget.getPixmap()
• PixmapWidget.setPixmap()
• PixmapWidget.resetPixmap()

aspectRatioMode = <PyQt4.QtCore.pyqtProperty object at 0x36ddb50>

This property holds the widget’s pixmap aspect ratio mode

Access functions:

• PixmapWidget.getAspectRatioMode()
• PixmapWidget.setAspectRatioMode()
• PixmapWidget.resetAspectRatioMode()

transformationMode = <PyQt4.QtCore.pyqtProperty object at 0x36ddb90>

This property holds the widget’s pixmap transformation mode

Access functions:

• PixmapWidget.getTransformationMode()
• PixmapWidget.setTransformationMode()
• PixmapWidget.resetTransformationMode()

alignment = <PyQt4.QtCore.pyqtProperty object at 0x36ddbd0>

This property holds the widget’s pixmap alignment

Access functions:

• PixmapWidget.getAlignment()
• PixmapWidget.setAlignment()
• PixmapWidget.resetAlignment()