Graphics/PixmapDiagram.py

Thu, 03 Apr 2014 23:05:31 +0200

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Thu, 03 Apr 2014 23:05:31 +0200
branch
Py2 comp.
changeset 3484
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parent 3178
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parent 3345
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child 3591
2f2a4a76dd22
permissions
-rw-r--r--

Merge with default branch.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2004 - 2014 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a dialog showing a pixmap.
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8 """
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9
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10 from __future__ import unicode_literals
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11
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12 from PyQt4.QtCore import Qt, QSize, QEvent
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13 from PyQt4.QtGui import QLabel, QPalette, QSizePolicy, QScrollArea, QAction, \
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14 QMenu, QToolBar, QImage, QPixmap, QPrinter, QPrintDialog, QPainter, \
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15 QFont, QColor
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16
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17 from E5Gui import E5MessageBox
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18 from E5Gui.E5MainWindow import E5MainWindow
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19 from E5Gui.E5ZoomWidget import E5ZoomWidget
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20
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21 import UI.Config
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22
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23 import Preferences
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24
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25
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26 class PixmapDiagram(E5MainWindow):
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27 """
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28 Class implementing a dialog showing a pixmap.
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29 """
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30 ZoomLevels = [
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31 1, 3, 5, 7, 9,
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32 10, 20, 30, 50, 67, 80, 90,
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33 100,
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34 110, 120, 133, 150, 170, 200, 240, 300, 400,
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35 500, 600, 700, 800, 900, 1000,
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36 ]
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37 ZoomLevelDefault = 100
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38
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39 def __init__(self, pixmap, parent=None, name=None):
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40 """
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41 Constructor
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42
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43 @param pixmap filename of a graphics file to show (string)
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44 @param parent parent widget of the view (QWidget)
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45 @param name name of the view widget (string)
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46 """
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47 super(PixmapDiagram, self).__init__(parent)
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48 if name:
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49 self.setObjectName(name)
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50 else:
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51 self.setObjectName("PixmapDiagram")
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52 self.setWindowTitle(self.tr("Pixmap-Viewer"))
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53
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54 self.pixmapLabel = QLabel()
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55 self.pixmapLabel.setObjectName("pixmapLabel")
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56 self.pixmapLabel.setBackgroundRole(QPalette.Base)
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57 self.pixmapLabel.setSizePolicy(
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58 QSizePolicy.Ignored, QSizePolicy.Ignored)
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59 self.pixmapLabel.setScaledContents(True)
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60
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61 self.pixmapView = QScrollArea()
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62 self.pixmapView.setObjectName("pixmapView")
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63 self.pixmapView.setBackgroundRole(QPalette.Dark)
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64 self.pixmapView.setWidget(self.pixmapLabel)
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65
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66 self.setCentralWidget(self.pixmapView)
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67
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68 self.__zoomWidget = E5ZoomWidget(
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69 UI.PixmapCache.getPixmap("zoomOut.png"),
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70 UI.PixmapCache.getPixmap("zoomIn.png"),
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71 UI.PixmapCache.getPixmap("zoomReset.png"), self)
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72 self.statusBar().addPermanentWidget(self.__zoomWidget)
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73 self.__zoomWidget.setMapping(
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74 PixmapDiagram.ZoomLevels, PixmapDiagram.ZoomLevelDefault)
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75 self.__zoomWidget.valueChanged.connect(self.__doZoom)
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76
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77 # polish up the dialog
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78 self.resize(QSize(800, 600).expandedTo(self.minimumSizeHint()))
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79
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80 self.pixmapfile = pixmap
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81 self.status = self.__showPixmap(self.pixmapfile)
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82
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83 self.__initActions()
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84 self.__initContextMenu()
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85 self.__initToolBars()
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86
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87 self.grabGesture(Qt.PinchGesture)
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88
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89 def __initActions(self):
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90 """
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91 Private method to initialize the view actions.
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92 """
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93 self.closeAct = \
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94 QAction(UI.PixmapCache.getIcon("close.png"),
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95 self.tr("Close"), self)
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96 self.closeAct.triggered.connect(self.close)
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97
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98 self.printAct = \
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99 QAction(UI.PixmapCache.getIcon("print.png"),
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100 self.tr("Print"), self)
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101 self.printAct.triggered.connect(self.__printDiagram)
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102
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103 self.printPreviewAct = \
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104 QAction(UI.PixmapCache.getIcon("printPreview.png"),
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105 self.tr("Print Preview"), self)
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106 self.printPreviewAct.triggered.connect(self.__printPreviewDiagram)
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107
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108 def __initContextMenu(self):
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109 """
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110 Private method to initialize the context menu.
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111 """
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112 self.__menu = QMenu(self)
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113 self.__menu.addAction(self.closeAct)
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114 self.__menu.addSeparator()
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115 self.__menu.addAction(self.printPreviewAct)
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116 self.__menu.addAction(self.printAct)
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117
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118 self.setContextMenuPolicy(Qt.CustomContextMenu)
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119 self.customContextMenuRequested.connect(self.__showContextMenu)
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120
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121 def __showContextMenu(self, coord):
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122 """
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123 Private slot to show the context menu of the listview.
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124
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125 @param coord the position of the mouse pointer (QPoint)
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parents:
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126 """
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parents:
diff changeset
127 self.__menu.popup(self.mapToGlobal(coord))
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parents:
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128
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parents:
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129 def __initToolBars(self):
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parents:
diff changeset
130 """
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parents:
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131 Private method to populate the toolbars with our actions.
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parents:
diff changeset
132 """
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parents: 3160
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133 self.windowToolBar = QToolBar(self.tr("Window"), self)
0
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parents:
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134 self.windowToolBar.setIconSize(UI.Config.ToolBarIconSize)
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parents:
diff changeset
135 self.windowToolBar.addAction(self.closeAct)
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136
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parents: 3160
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137 self.graphicsToolBar = QToolBar(self.tr("Graphics"), self)
0
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parents:
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138 self.graphicsToolBar.setIconSize(UI.Config.ToolBarIconSize)
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parents:
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139 self.graphicsToolBar.addAction(self.printPreviewAct)
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parents:
diff changeset
140 self.graphicsToolBar.addAction(self.printAct)
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141
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parents:
diff changeset
142 self.addToolBar(Qt.TopToolBarArea, self.windowToolBar)
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parents:
diff changeset
143 self.addToolBar(Qt.TopToolBarArea, self.graphicsToolBar)
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144
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parents:
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145 def __showPixmap(self, filename):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
146 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
147 Private method to show a file.
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parents:
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148
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149 @param filename name of the file to be shown (string)
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parents:
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150 @return flag indicating success (boolean)
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parents:
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151 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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152 image = QImage(filename)
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parents:
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153 if image.isNull():
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parents: 2992
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154 E5MessageBox.warning(
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parents: 2992
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155 self,
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156 self.tr("Pixmap-Viewer"),
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157 self.tr(
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158 """<p>The file <b>{0}</b> cannot be displayed."""
0
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parents:
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159 """ The format is not supported.</p>""").format(filename))
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160 return False
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161
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162 self.pixmapLabel.setPixmap(QPixmap.fromImage(image))
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parents:
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163 self.pixmapLabel.adjustSize()
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164 return True
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165
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166 def getDiagramName(self):
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parents:
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167 """
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parents:
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168 Method to retrieve a name for the diagram.
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parents:
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169
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170 @return name for the diagram
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parents:
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171 """
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172 return self.pixmapfile
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173
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parents:
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174 def getStatus(self):
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parents:
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175 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176 Method to retrieve the status of the canvas.
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parents:
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177
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178 @return flag indicating a successful pixmap loading (boolean)
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parents:
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179 """
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parents:
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180 return self.status
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181
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182 def wheelEvent(self, evt):
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183 """
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184 Protected method to handle wheel events.
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185
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186 @param evt reference to the wheel event (QWheelEvent)
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187 """
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parents: 1155
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188 if evt.modifiers() & Qt.ControlModifier:
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189 if evt.delta() < 0:
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190 self.__zoomOut()
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191 else:
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192 self.__zoomIn()
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193 evt.accept()
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194 return
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195
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196 super(PixmapDiagram, self).wheelEvent(evt)
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197
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198 def event(self, evt):
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199 """
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200 Protected method handling events.
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201
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202 @param evt reference to the event (QEvent)
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203 @return flag indicating, if the event was handled (boolean)
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204 """
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205 if evt.type() == QEvent.Gesture:
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206 self.gestureEvent(evt)
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207 return True
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208
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209 return super(PixmapDiagram, self).event(evt)
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210
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211 def gestureEvent(self, evt):
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212 """
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parents: 1509
diff changeset
213 Protected method handling gesture events.
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parents: 1509
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214
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parents: 1509
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215 @param evt reference to the gesture event (QGestureEvent
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parents: 1509
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216 """
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diff changeset
217 pinch = evt.gesture(Qt.PinchGesture)
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diff changeset
218 if pinch:
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parents: 1509
diff changeset
219 if pinch.state() == Qt.GestureStarted:
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220 pinch.setScaleFactor(self.__zoom() / 100)
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diff changeset
221 else:
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parents: 2302
diff changeset
222 self.__doZoom(int(pinch.scaleFactor() * 100))
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223 evt.accept()
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parents: 1509
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224
2992
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diff changeset
225 ###########################################################################
0
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parents:
diff changeset
226 ## Private menu handling methods below.
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227 ###########################################################################
0
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228
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parents:
diff changeset
229 def __adjustScrollBar(self, scrollBar, factor):
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parents:
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230 """
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parents:
diff changeset
231 Private method to adjust a scrollbar by a certain factor.
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232
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parents:
diff changeset
233 @param scrollBar reference to the scrollbar object (QScrollBar)
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parents:
diff changeset
234 @param factor factor to adjust by (float)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
235 """
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parents:
diff changeset
236 scrollBar.setValue(int(factor * scrollBar.value()
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parents: 3034
diff changeset
237 + ((factor - 1) * scrollBar.pageStep() / 2)))
0
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parents:
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238
2334
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parents: 2302
diff changeset
239 def __levelForZoom(self, zoom):
0
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parents:
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240 """
2334
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parents: 2302
diff changeset
241 Private method determining the zoom level index given a zoom factor.
0
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parents:
diff changeset
242
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parents: 2302
diff changeset
243 @param zoom zoom factor (integer)
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parents: 2302
diff changeset
244 @return index of zoom factor (integer)
0
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parents:
diff changeset
245 """
2334
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
246 try:
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parents: 2302
diff changeset
247 index = PixmapDiagram.ZoomLevels.index(zoom)
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diff changeset
248 except ValueError:
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parents: 2302
diff changeset
249 for index in range(len(PixmapDiagram.ZoomLevels)):
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parents: 2302
diff changeset
250 if zoom <= PixmapDiagram.ZoomLevels[index]:
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parents: 2302
diff changeset
251 break
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parents: 2302
diff changeset
252 return index
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parents: 2302
diff changeset
253
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
254 def __doZoom(self, value):
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parents: 2302
diff changeset
255 """
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
256 Public method to set the zoom value in percent.
0
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parents:
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257
2334
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parents: 2302
diff changeset
258 @param value zoom value in percent (integer)
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parents: 2302
diff changeset
259 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
260 oldValue = self.__zoom()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
261 if value != oldValue:
2992
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
262 self.pixmapLabel.resize(
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
263 value / 100 * self.pixmapLabel.pixmap().size())
2334
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parents: 2302
diff changeset
264
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
265 factor = value / oldValue
2992
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
266 self.__adjustScrollBar(
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
267 self.pixmapView.horizontalScrollBar(), factor)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
268 self.__adjustScrollBar(
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
269 self.pixmapView.verticalScrollBar(), factor)
2334
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parents: 2302
diff changeset
270
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
271 self.__zoomWidget.setValue(value)
0
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parents:
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272
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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273 def __zoomIn(self):
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parents:
diff changeset
274 """
2334
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
275 Private method to zoom into the pixmap.
0
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parents:
diff changeset
276 """
2334
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
277 index = self.__levelForZoom(self.__zoom())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
278 if index < len(PixmapDiagram.ZoomLevels) - 1:
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parents: 2302
diff changeset
279 self.__doZoom(PixmapDiagram.ZoomLevels[index + 1])
0
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parents:
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280
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
281 def __zoomOut(self):
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parents:
diff changeset
282 """
2334
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
283 Private method to zoom out of the pixmap.
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
284 """
2334
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
285 index = self.__levelForZoom(self.__zoom())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
286 if index > 0:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
287 self.__doZoom(PixmapDiagram.ZoomLevels[index - 1])
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
288
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
289 def __zoomReset(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
290 """
2334
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
291 Private method to reset the zoom value.
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
292 """
2334
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
293 self.__doZoom(PixmapDiagram.ZoomLevels[PixmapDiagram.ZoomLevelDefault])
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
294
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
295 def __zoom(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
296 """
2334
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
297 Public method to get the current zoom factor in percent.
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
298
fc69ad77e18a Introduced a zoom widget in the status bar of several windows.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
299 @return current zoom factor in percent (integer)
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
300 """
3034
7ce719013078 Fixed various coding style issues.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3022
diff changeset
301 return int(self.pixmapLabel.width() /
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
302 self.pixmapLabel.pixmap().width() * 100.0)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
303
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
304 def __printDiagram(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
305 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
306 Private slot called to print the diagram.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
307 """
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
308 printer = QPrinter(mode=QPrinter.ScreenResolution)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
309 printer.setFullPage(True)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
310 if Preferences.getPrinter("ColorMode"):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
311 printer.setColorMode(QPrinter.Color)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
312 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
313 printer.setColorMode(QPrinter.GrayScale)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
314 if Preferences.getPrinter("FirstPageFirst"):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
315 printer.setPageOrder(QPrinter.FirstPageFirst)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
316 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
317 printer.setPageOrder(QPrinter.LastPageFirst)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
318 printer.setPrinterName(Preferences.getPrinter("PrinterName"))
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
319
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
320 printDialog = QPrintDialog(printer, self)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
321 if printDialog.exec_():
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
322 self.__print(printer)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
323
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
324 def __printPreviewDiagram(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
325 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
326 Private slot called to show a print preview of the diagram.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
327 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
328 from PyQt4.QtGui import QPrintPreviewDialog
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
329
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
330 printer = QPrinter(mode=QPrinter.ScreenResolution)
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
331 printer.setFullPage(True)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
332 if Preferences.getPrinter("ColorMode"):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
333 printer.setColorMode(QPrinter.Color)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
334 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
335 printer.setColorMode(QPrinter.GrayScale)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
336 if Preferences.getPrinter("FirstPageFirst"):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
337 printer.setPageOrder(QPrinter.FirstPageFirst)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
338 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
339 printer.setPageOrder(QPrinter.LastPageFirst)
1155
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
340 printer.setPageMargins(
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
341 Preferences.getPrinter("LeftMargin") * 10,
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
342 Preferences.getPrinter("TopMargin") * 10,
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
343 Preferences.getPrinter("RightMargin") * 10,
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
344 Preferences.getPrinter("BottomMargin") * 10,
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
345 QPrinter.Millimeter
4cbef040f07e Fixed issues setting the printer margins correctly.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1131
diff changeset
346 )
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
347 printer.setPrinterName(Preferences.getPrinter("PrinterName"))
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
348
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
349 preview = QPrintPreviewDialog(printer, self)
483
ca7d8599a575 Continued porting signal/slot usage to the new API.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 458
diff changeset
350 preview.paintRequested[QPrinter].connect(self.__print)
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
351 preview.exec_()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
352
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
353 def __print(self, printer):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
354 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
355 Private slot to the actual printing.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
356
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
357 @param printer reference to the printer object (QPrinter)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
358 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
359 painter = QPainter()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
360 painter.begin(printer)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
361
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
362 # calculate margin and width of printout
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
363 font = QFont("times", 10)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
364 painter.setFont(font)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
365 fm = painter.fontMetrics()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
366 fontHeight = fm.lineSpacing()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
367 marginX = printer.pageRect().x() - printer.paperRect().x()
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
368 marginX = Preferences.getPrinter("LeftMargin") * \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
369 int(printer.resolution() / 2.54) - marginX
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
370 marginY = printer.pageRect().y() - printer.paperRect().y()
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
371 marginY = Preferences.getPrinter("TopMargin") * \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
372 int(printer.resolution() / 2.54) - marginY
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
373
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
374 width = printer.width() - marginX - \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
375 Preferences.getPrinter("RightMargin") * \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
376 int(printer.resolution() / 2.54)
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
377 height = printer.height() - fontHeight - 4 - marginY - \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
378 Preferences.getPrinter("BottomMargin") * \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
diff changeset
379 int(printer.resolution() / 2.54)
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
380
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Detlev Offenbach <detlev@die-offenbachs.de>
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381 # write a foot note
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a9a94491c4fd Changed the code to use QObject.tr() instead of QObject.trUtf8().
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382 s = self.tr("Diagram: {0}").format(self.getDiagramName())
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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383 tc = QColor(50, 50, 50)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
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384 painter.setPen(tc)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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385 painter.drawRect(marginX, marginY, width, height)
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
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parents: 791
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386 painter.drawLine(marginX, marginY + height + 2,
3022
57179e4cdadd Fixed a bunch of visible indentation issues.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3020
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387 marginX + width, marginY + height + 2)
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Detlev Offenbach <detlev@die-offenbachs.de>
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388 painter.setFont(font)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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389 painter.drawText(marginX, marginY + height + 4, width,
3022
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3020
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390 fontHeight, Qt.AlignRight, s)
0
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parents:
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391
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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392 # render the diagram
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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393 size = self.pixmapLabel.pixmap().size()
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394 size.scale(QSize(width - 10, height - 10), # 5 px inner margin
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57179e4cdadd Fixed a bunch of visible indentation issues.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3020
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395 Qt.KeepAspectRatio)
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2334
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396 painter.setViewport(marginX + 5, marginY + 5,
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
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parents: 2334
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397 size.width(), size.height())
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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398 painter.setWindow(self.pixmapLabel.pixmap().rect())
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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399 painter.drawPixmap(0, 0, self.pixmapLabel.pixmap())
945
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
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400 painter.end()

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