eric7/EricWidgets/EricMapWidget.py

Sat, 22 May 2021 19:58:24 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 22 May 2021 19:58:24 +0200
branch
eric7
changeset 8358
144a6b854f70
parent 8356
eric7/E5Gui/EricMapWidget.py@68ec9c3d4de5
child 8647
cdbce48aded8
permissions
-rw-r--r--

Sorted the eric specific extensions into packages named like the corresponding PyQt packages (i.e. EricCore,EricGui and EricWidgets).

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2014 - 2021 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 base class for showing a document map.
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8 """
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9
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10 from PyQt6.QtCore import Qt, QSize, QRect, QCoreApplication
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11 from PyQt6.QtGui import QColor, QBrush, QPainter
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12 from PyQt6.QtWidgets import QWidget, QAbstractScrollArea
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13
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14
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15 class EricMapWidget(QWidget):
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16 """
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17 Class implementing a base class for showing a document map.
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18 """
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19 def __init__(self, parent=None):
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20 """
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21 Constructor
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22
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23 @param parent reference to the parent widget (QWidget)
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24 """
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25 super().__init__(parent)
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26 self.setAttribute(Qt.WidgetAttribute.WA_OpaquePaintEvent)
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27
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28 self.__width = 14
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29 self.__lineBorder = 1
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30 self.__lineHeight = 2
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31 self.__backgroundColor = QColor("#e7e7e7")
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32 self.__setSliderColor()
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33
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34 self._master = None
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35 self.__enabled = False
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36 self.__rightSide = True
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37
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38 if parent is not None and isinstance(parent, QAbstractScrollArea):
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39 self.setMaster(parent)
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40
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41 def __setSliderColor(self):
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42 """
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43 Private method to set the slider color depending upon the background
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44 color.
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45 """
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46 if self.__backgroundColor.toHsv().value() < 128:
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47 # dark background, use white slider
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48 self.__sliderColor = Qt.GlobalColor.white
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49 else:
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50 # light background, use black slider
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51 self.__sliderColor = Qt.GlobalColor.black
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52
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53 def __updateMasterViewportWidth(self):
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54 """
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55 Private method to update the master's viewport width.
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56 """
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57 if self._master:
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58 if self.__enabled:
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59 width = self.__width
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60 else:
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61 width = 0
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62 if self.__rightSide:
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63 self._master.setViewportMargins(0, 0, width, 0)
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64 else:
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65 self._master.setViewportMargins(width, 0, 0, 0)
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66
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67 def setMaster(self, master):
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68 """
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69 Public method to set the map master widget.
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70
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71 @param master map master widget (QAbstractScrollArea)
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72 """
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73 self._master = master
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74 self._master.setVerticalScrollBarPolicy(
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75 Qt.ScrollBarPolicy.ScrollBarAlwaysOn)
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76 self._master.verticalScrollBar().valueChanged.connect(self.update)
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77 self._master.verticalScrollBar().rangeChanged.connect(self.update)
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78 self.__updateMasterViewportWidth()
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79
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80 def setWidth(self, width):
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81 """
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82 Public method to set the widget width.
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83
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84 @param width widget width (integer)
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85 """
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86 if width != self.__width:
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87 self.__width = max(6, width) # minimum width 6 pixels
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88 self.__updateMasterViewportWidth()
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89 self.update()
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90
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91 def width(self):
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92 """
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93 Public method to get the widget's width.
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94
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95 @return widget width (integer)
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96 """
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97 return self.__width
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98
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99 def setMapPosition(self, onRight):
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100 """
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101 Public method to set, whether the map should be shown to the right or
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102 left of the master widget.
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103
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104 @param onRight flag indicating to show the map on the right side of
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105 the master widget
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106 @type bool
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107 """
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108 if onRight != self.__rightSide:
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109 self.__rightSide = onRight
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110 self.__updateMasterViewportWidth()
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111 self.update()
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112
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113 def isOnRightSide(self):
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114 """
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115 Public method to test, if the map is shown on the right side of the
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116 master widget.
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117
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118 @return flag indicating that the map is to the right of the master
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119 widget
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120 @rtype bool
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121 """
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122 return self.__rightSide
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123
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124 def setLineDimensions(self, border, height):
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125 """
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126 Public method to set the line (indicator) dimensions.
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127
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128 @param border border width on each side in x-direction (integer)
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129 @param height height of the line in pixels (integer)
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130 """
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131 if border != self.__lineBorder or height != self.__lineHeight:
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132 self.__lineBorder = max(1, border) # min border 1 pixel
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133 self.__lineHeight = max(1, height) # min height 1 pixel
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134 self.update()
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135
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136 def lineDimensions(self):
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137 """
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138 Public method to get the line (indicator) dimensions.
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139
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140 @return tuple with border width (integer) and line height (integer)
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141 """
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142 return self.__lineBorder, self.__lineHeight
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143
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144 def setEnabled(self, enable):
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145 """
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146 Public method to set the enabled state.
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147
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148 @param enable flag indicating the enabled state (boolean)
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149 """
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150 if enable != self.__enabled:
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151 self.__enabled = enable
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152 self.setVisible(enable)
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153 self.__updateMasterViewportWidth()
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154
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155 def isEnabled(self):
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156 """
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157 Public method to check the enabled state.
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158
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159 @return flag indicating the enabled state (boolean)
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160 """
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161 return self.__enabled
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162
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163 def setBackgroundColor(self, color):
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164 """
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165 Public method to set the widget background color.
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166
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167 @param color color for the background (QColor)
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168 """
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169 if color != self.__backgroundColor:
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170 self.__backgroundColor = color
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171 self.__setSliderColor()
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172 self.update()
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173
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174 def backgroundColor(self):
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175 """
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176 Public method to get the background color.
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177
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178 @return background color (QColor)
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179 """
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180 return QColor(self.__backgroundColor)
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181
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182 def sizeHint(self):
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183 """
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184 Public method to give an indication about the preferred size.
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185
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186 @return preferred size (QSize)
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187 """
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188 return QSize(self.__width, 0)
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189
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190 def paintEvent(self, event):
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191 """
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192 Protected method to handle a paint event.
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193
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194 @param event paint event (QPaintEvent)
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195 """
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196 # step 1: fill the whole painting area
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197 painter = QPainter(self)
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198 painter.fillRect(event.rect(), self.__backgroundColor)
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199
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200 # step 2: paint the indicators
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201 self._paintIt(painter)
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202
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203 # step 3: paint the slider
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204 if self._master:
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205 penColor = self.__sliderColor
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206 painter.setPen(penColor)
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207 brushColor = Qt.GlobalColor.transparent
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208 painter.setBrush(QBrush(brushColor))
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209 painter.drawRect(self.__generateSliderRange(
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210 self._master.verticalScrollBar()))
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211
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212 def _paintIt(self, painter):
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213 """
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214 Protected method for painting the widget's indicators.
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215
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216 Note: This method should be implemented by subclasses.
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217
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218 @param painter reference to the painter object (QPainter)
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219 """
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220 pass
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221
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222 def mousePressEvent(self, event):
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223 """
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224 Protected method to handle a mouse button press.
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225
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226 @param event reference to the mouse event (QMouseEvent)
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227 """
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228 if event.button() == Qt.MouseButton.LeftButton and self._master:
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229 vsb = self._master.verticalScrollBar()
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230 value = self.position2Value(event.position().toPoint().y() - 1)
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231 vsb.setValue(value - 0.5 * vsb.pageStep()) # center on page
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232 self.__mousePressPos = None
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233
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234 def mouseMoveEvent(self, event):
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235 """
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236 Protected method to handle a mouse moves.
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237
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238 @param event reference to the mouse event (QMouseEvent)
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239 """
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240 if event.buttons() & Qt.MouseButton.LeftButton and self._master:
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241 vsb = self._master.verticalScrollBar()
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242 value = self.position2Value(event.position().toPoint().y() - 1)
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243 vsb.setValue(value - 0.5 * vsb.pageStep()) # center on page
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244
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245 def wheelEvent(self, event):
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246 """
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247 Protected slot handling mouse wheel events.
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248
d0a603f1bfcd Added support for wheel events and mouse move events to the map widget and made some adjustments to the representation (colors).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3329
diff changeset
249 @param event reference to the wheel event (QWheelEvent)
d0a603f1bfcd Added support for wheel events and mouse move events to the map widget and made some adjustments to the representation (colors).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3329
diff changeset
250 """
7198
684261ef2165 Removed the Qt4 runtime stuff.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6942
diff changeset
251 isVertical = event.angleDelta().x() == 0
7252
c5e3705073eb Continued to resolve code style issue M841.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7229
diff changeset
252 if (
c5e3705073eb Continued to resolve code style issue M841.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7229
diff changeset
253 self._master and
8143
2c730d5fd177 Changed the use of PyQt enums because the way they were used previously is deprecated since two years and replaced some deprecated Qt stuff.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7923
diff changeset
254 event.modifiers() == Qt.KeyboardModifier.NoModifier and
7252
c5e3705073eb Continued to resolve code style issue M841.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7229
diff changeset
255 isVertical
c5e3705073eb Continued to resolve code style issue M841.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7229
diff changeset
256 ):
3339
d0a603f1bfcd Added support for wheel events and mouse move events to the map widget and made some adjustments to the representation (colors).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3329
diff changeset
257 QCoreApplication.sendEvent(self._master.verticalScrollBar(), event)
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
258
3327
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
259 def calculateGeometry(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
260 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
261 Public method to recalculate the map widget's geometry.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
262 """
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
263 if self._master:
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
264 cr = self._master.contentsRect()
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
265 vsb = self._master.verticalScrollBar()
3327
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
266 if vsb.isVisible():
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
267 vsbw = vsb.contentsRect().width()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
268 else:
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
269 vsbw = 0
8319
ea11a3948f40 Continued porting eric to PyQt6.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8318
diff changeset
270 margins = self._master.contentsMargins()
ea11a3948f40 Continued porting eric to PyQt6.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8318
diff changeset
271 if margins.right() > vsbw:
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
272 vsbw = 0
6278
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
273 if self.__rightSide:
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
274 self.setGeometry(
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
275 QRect(cr.right() - self.__width - vsbw, cr.top(),
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
276 self.__width, cr.height()))
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
277 else:
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
278 self.setGeometry(
13fd8759f981 Editor, E5MapWidget: added a configuration option (Editor->Style page) to show the marker map on the left or right of the editor
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6048
diff changeset
279 QRect(0, cr.top(), self.__width, cr.height()))
4371
e09838aa0a9f Fixed an issue in the marker map causing its contents to disappear on Mac OS X when the scrollbar got hidden.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 4021
diff changeset
280 self.update()
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
281
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
282 def scaleFactor(self, slider=False):
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
283 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
284 Public method to determine the scrollbar's scale factor.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
285
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
286 @param slider flag indicating to calculate the result for the slider
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
287 (boolean)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
288 @return scale factor (float)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
289 """
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
290 if self._master:
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
291 delta = 0 if slider else 2
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
292 vsb = self._master.verticalScrollBar()
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
293 posHeight = vsb.height() - delta - 1
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
294 valHeight = vsb.maximum() - vsb.minimum() + vsb.pageStep()
3484
645c12de6b0c Merge with default branch.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 3339
diff changeset
295 return float(posHeight) / valHeight
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
296 else:
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
297 return 1.0
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
298
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
299 def value2Position(self, value, slider=False):
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
300 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
301 Public method to convert a scrollbar value into a position.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
302
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
303 @param value value to convert (integer)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
304 @param slider flag indicating to calculate the result for the slider
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
305 (boolean)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
306 @return position (integer)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
307 """
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
308 if self._master:
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
309 offset = 0 if slider else 1
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
310 vsb = self._master.verticalScrollBar()
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
311 return (value - vsb.minimum()) * self.scaleFactor(slider) + offset
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
312 else:
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
313 return value
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
314
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
315 def position2Value(self, position, slider=False):
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
316 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
317 Public method to convert a position into a scrollbar value.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
318
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
319 @param position scrollbar position to convert (integer)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
320 @param slider flag indicating to calculate the result for the slider
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
321 (boolean)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
322 @return scrollbar value (integer)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
323 """
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
324 if self._master:
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
325 offset = 0 if slider else 1
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
326 vsb = self._master.verticalScrollBar()
3327
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
327 return vsb.minimum() + max(
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
328 0, (position - offset) / self.scaleFactor(slider))
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
329 else:
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
330 return position
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
331
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
332 def generateIndicatorRect(self, position):
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
333 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
334 Public method to generate an indicator rectangle.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
335
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
336 @param position indicator position (integer)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
337 @return indicator rectangle (QRect)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
338 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
339 return QRect(self.__lineBorder, position - self.__lineHeight // 2,
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
340 self.__width - self.__lineBorder, self.__lineHeight)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
341
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
342 def __generateSliderRange(self, scrollbar):
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
343 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
344 Private method to generate the slider rectangle.
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
345
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
346 @param scrollbar reference to the vertical scrollbar (QScrollBar)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
347 @return slider rectangle (QRect)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
348 """
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
349 pos1 = self.value2Position(scrollbar.value(), slider=True)
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
350 pos2 = self.value2Position(scrollbar.value() + scrollbar.pageStep(),
1338767b5315 Started implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
351 slider=True)
3329
1ee38e29ed4f Continued implementing support for a marker map in the editor.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 3327
diff changeset
352 return QRect(0, pos1, self.__width - 1, pos2 - pos1)

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