eric6/Snapshot/SnapshotPreview.py

Sat, 27 Feb 2021 12:08:23 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 27 Feb 2021 12:08:23 +0100
changeset 8138
169e65a6787c
parent 7923
91e843545d9a
child 8143
2c730d5fd177
permissions
-rw-r--r--

Shell: added functionality to show a prompt when the main client process has exited (e.g. a script ended).

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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.
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parents:
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1 # -*- coding: utf-8 -*-
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2
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91e843545d9a Updated copyright for 2021.
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3 # Copyright (c) 2012 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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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.
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6 """
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>
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7 Module implementing the snapshot preview label.
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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.
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9
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441956d8fce5 Started porting eric5 to PyQt5.
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10 from PyQt5.QtCore import pyqtSignal, QPoint, Qt
441956d8fce5 Started porting eric5 to PyQt5.
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11 from PyQt5.QtWidgets import QLabel, QApplication
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12
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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13
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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14 class SnapshotPreview(QLabel):
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15 """
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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16 Class implementing the snapshot preview label.
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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.
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18 @signal startDrag() emitted to indicate the start of a drag operation
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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.
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20 startDrag = pyqtSignal()
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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>
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22 def __init__(self, parent=None):
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23 """
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24 Constructor
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25
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26 @param parent reference to the parent widget (QWidget)
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27 """
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8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
T.Rzepka <Tobias.Rzepka@gmail.com>
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28 super(SnapshotPreview, self).__init__(parent)
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29
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30 self.setAlignment(Qt.AlignHCenter | Qt.AlignCenter)
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31 self.setCursor(Qt.OpenHandCursor)
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32
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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33 self.__mouseClickPoint = QPoint(0, 0)
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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.
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35 def setPreview(self, preview):
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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>
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37 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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38
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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39 @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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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>
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41 if not preview.isNull():
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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42 pixmap = preview.scaled(
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43 self.width(), self.height(),
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44 Qt.KeepAspectRatio, Qt.SmoothTransformation)
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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.
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45 else:
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46 pixmap = preview
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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47 self.setPixmap(pixmap)
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48
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49 def mousePressEvent(self, evt):
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50 """
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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51 Protected method to handle mouse button presses.
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52
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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53 @param evt mouse button press event (QMouseEvent)
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54 """
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55 if evt.button() == Qt.LeftButton:
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56 self.__mouseClickPoint = evt.pos()
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57
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58 def mouseReleaseEvent(self, evt):
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59 """
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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60 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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61
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62 @param evt mouse button release event (QMouseEvent)
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63 """
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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64 self.__mouseClickPoint = QPoint(0, 0)
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65
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66 def mouseMoveEvent(self, evt):
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67 """
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>
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68 Protected method to handle mouse moves.
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69
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70 @param evt mouse move event (QMouseEvent)
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71 """
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72 if (
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73 self.__mouseClickPoint != QPoint(0, 0) and
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74 (evt.pos() - self.__mouseClickPoint).manhattanLength() >
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75 QApplication.startDragDistance()
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76 ):
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77 self.__mouseClickPoint = QPoint(0, 0)
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78 self.startDrag.emit()

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