Snapshot/SnapshotPreview.py

Mon, 25 Mar 2013 03:11:06 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Mon, 25 Mar 2013 03:11:06 +0100
branch
Py2 comp.
changeset 2525
8b507a9a2d40
parent 2302
f29e9405c851
child 3057
10516539f238
permissions
-rw-r--r--

Script changes: Future import added, super calls modified and unicode behavior for str.

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f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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1 # -*- coding: utf-8 -*-
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parents:
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2
2302
f29e9405c851 Updated copyright for 2013.
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parents: 1772
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3 # Copyright (c) 2012 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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parents:
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5
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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6 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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7 Module implementing the snapshot preview label.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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8 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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9
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8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 2302
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10 from __future__ import unicode_literals # __IGNORE_WARNING__
8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 2302
diff changeset
11
1772
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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12 from PyQt4.QtCore import pyqtSignal, QPoint, Qt
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parents:
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13 from PyQt4.QtGui import QLabel, QApplication
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parents:
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14
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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15
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Detlev Offenbach <detlev@die-offenbachs.de>
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16 class SnapshotPreview(QLabel):
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17 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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18 Class implementing the snapshot preview label.
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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19
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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20 @signal startDrag() emitted to indicate the start of a drag operation
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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21 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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22 startDrag = pyqtSignal()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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23
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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24 def __init__(self, parent=None):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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25 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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26 Constructor
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parents:
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27
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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28 @param parent reference to the parent widget (QWidget)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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29 """
2525
8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 2302
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30 super(SnapshotPreview, self).__init__(parent)
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parents:
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31
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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32 self.setAlignment(Qt.AlignHCenter | Qt.AlignCenter)
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parents:
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33 self.setCursor(Qt.OpenHandCursor)
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parents:
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34
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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35 self.__mouseClickPoint = QPoint(0, 0)
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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36
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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37 def setPreview(self, preview):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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38 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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39 Public slot to set the preview picture.
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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40
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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41 @param preview preview picture to be shown (QPixmap)
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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42 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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43 if not preview.isNull():
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parents:
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44 pixmap = preview.scaled(
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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45 self.width(), self.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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46 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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47 pixmap = preview
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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48 self.setPixmap(pixmap)
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parents:
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49
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50 def mousePressEvent(self, evt):
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51 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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52 Protected method to handle mouse button presses.
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
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parents:
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53
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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54 @param evt mouse button press event (QMouseEvent)
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parents:
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55 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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56 if evt.button() == Qt.LeftButton:
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57 self.__mouseClickPoint = evt.pos()
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parents:
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58
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59 def mouseReleaseEvent(self, evt):
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parents:
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60 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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61 Protected method to handle mouse button releases.
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
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parents:
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62
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parents:
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63 @param evt mouse button release event (QMouseEvent)
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parents:
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64 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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65 self.__mouseClickPoint = QPoint(0, 0)
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parents:
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66
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67 def mouseMoveEvent(self, evt):
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parents:
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68 """
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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69 Protected method to handle mouse moves.
f325dfdc8f6b Extended the snapshot tool to allow for the selection of a screen (for multi screen systems), elliptical selection and a freehand selection.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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70
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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71 @param evt mouse move event (QMouseEvent)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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72 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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73 if self.__mouseClickPoint != QPoint(0, 0) and \
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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74 (evt.pos() - self.__mouseClickPoint).manhattanLength() > \
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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75 QApplication.startDragDistance():
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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76 self.__mouseClickPoint = QPoint(0, 0)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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77 self.startDrag.emit()

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