1# -*- coding: utf-8 -*- 

2""" 

3/*************************************************************************** 

4 GRM 

5 A QGIS plugin 

6 GRM 

7 Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/ 

8 ------------------- 

9 begin : 2020-01-08 

10 git sha : $Format:%H$ 

11 copyright : (C) 2020 by Hermesys 

12 email : shpark@hermesys.co.kr 

13 ***************************************************************************/ 

14 

15/*************************************************************************** 

16 * * 

17 * This program is free software; you can redistribute it and/or modify * 

18 * it under the terms of the GNU General Public License as published by * 

19 * the Free Software Foundation; either version 2 of the License, or * 

20 * (at your option) any later version. * 

21 * * 

22 ***************************************************************************/ 

23""" 

24import os.path 

25 

26from qgis.PyQt.QtCore import QCoreApplication, QSettings, Qt, QTranslator 

27from qgis.PyQt.QtGui import QIcon 

28from qgis.PyQt.QtWidgets import QAction 

29 

30# Import the code for the DockWidget 

31from grm.GRM_dockwidget import GRMDockWidget 

32 

33# Initialize Qt resources from file resources.py 

34from grm.resources import * 

35 

36 

37class GRM: 

38 """QGIS Plugin Implementation.""" 

39 

40 def __init__(self, iface): 

41 """Constructor. 

42 

43 :param iface: An interface instance that will be passed to this class 

44 which provides the hook by which you can manipulate the QGIS 

45 application at run time. 

46 :type iface: QgsInterface 

47 """ 

48 # Save reference to the QGIS interface 

49 self.iface = iface 

50 

51 # initialize plugin directory 

52 self.plugin_dir = os.path.dirname(__file__) 

53 

54 # initialize locale 

55 locale = QSettings().value("locale/userLocale")[0:2] 

56 locale_path = os.path.join(self.plugin_dir, "i18n", "GRM_{}.qm".format(locale)) 

57 

58 if os.path.exists(locale_path): 

59 self.translator = QTranslator() 

60 self.translator.load(locale_path) 

61 QCoreApplication.installTranslator(self.translator) 

62 

63 # Declare instance attributes 

64 self.actions = [] 

65 self.menu = self.tr("&QGRM") 

66 # TODO: We are going to let the user set this up in a future iteration 

67 self.toolbar = self.iface.addToolBar("GRM") 

68 self.toolbar.setObjectName("GRM") 

69 

70 # print "** INITIALIZING GRM" 

71 

72 self.pluginIsActive = False 

73 self.dockwidget = None 

74 

75 # noinspection PyMethodMayBeStatic 

76 def tr(self, message): 

77 """Get the translation for a string using Qt translation API. 

78 

79 We implement this ourselves since we do not inherit QObject. 

80 

81 :param message: String for translation. 

82 :type message: str, QString 

83 

84 :returns: Translated version of message. 

85 :rtype: QString 

86 """ 

87 # noinspection PyTypeChecker,PyArgumentList,PyCallByClass 

88 return QCoreApplication.translate("GRM", message) 

89 

90 def add_action( 

91 self, 

92 icon_path, 

93 text, 

94 callback, 

95 enabled_flag=True, 

96 add_to_menu=True, 

97 add_to_toolbar=True, 

98 status_tip=None, 

99 whats_this=None, 

100 parent=None, 

101 ): 

102 """Add a toolbar icon to the toolbar. 

103 

104 :param icon_path: Path to the icon for this action. Can be a resource 

105 path (e.g. ':/plugins/foo/bar.png') or a normal file system path. 

106 :type icon_path: str 

107 

108 :param text: Text that should be shown in menu items for this action. 

109 :type text: str 

110 

111 :param callback: Function to be called when the action is triggered. 

112 :type callback: function 

113 

114 :param enabled_flag: A flag indicating if the action should be enabled 

115 by default. Defaults to True. 

116 :type enabled_flag: bool 

117 

118 :param add_to_menu: Flag indicating whether the action should also 

119 be added to the menu. Defaults to True. 

120 :type add_to_menu: bool 

121 

122 :param add_to_toolbar: Flag indicating whether the action should also 

123 be added to the toolbar. Defaults to True. 

124 :type add_to_toolbar: bool 

125 

126 :param status_tip: Optional text to show in a popup when mouse pointer 

127 hovers over the action. 

128 :type status_tip: str 

129 

130 :param parent: Parent widget for the new action. Defaults None. 

131 :type parent: QWidget 

132 

133 :param whats_this: Optional text to show in the status bar when the 

134 mouse pointer hovers over the action. 

135 

136 :returns: The action that was created. Note that the action is also 

137 added to self.actions list. 

138 :rtype: QAction 

139 """ 

140 

141 icon = QIcon(icon_path) 

142 action = QAction(icon, text, parent) 

143 action.triggered.connect(callback) 

144 action.setEnabled(enabled_flag) 

145 

146 if status_tip is not None: 

147 action.setStatusTip(status_tip) 

148 

149 if whats_this is not None: 

150 action.setWhatsThis(whats_this) 

151 

152 if add_to_toolbar: 

153 self.toolbar.addAction(action) 

154 

155 if add_to_menu: 

156 self.iface.addPluginToMenu(self.menu, action) 

157 

158 self.actions.append(action) 

159 

160 return action 

161 

162 def initGui(self): 

163 """Create the menu entries and toolbar icons inside the QGIS GUI.""" 

164 

165 icon_path = ":/plugins/GRM/icon.png" 

166 self.add_action( 

167 icon_path, 

168 text=self.tr(""), 

169 callback=self.run, 

170 parent=self.iface.mainWindow(), 

171 ) 

172 

173 # -------------------------------------------------------------------------- 

174 

175 def onClosePlugin(self): 

176 """Cleanup necessary items here when plugin dockwidget is closed""" 

177 

178 # print "** CLOSING GRM" 

179 

180 # disconnects 

181 self.dockwidget.closingPlugin.disconnect(self.onClosePlugin) 

182 

183 # remove this statement if dockwidget is to remain 

184 # for reuse if plugin is reopened 

185 # Commented next statement since it causes QGIS crashe 

186 # when closing the docked window: 

187 # self.dockwidget = None 

188 

189 self.pluginIsActive = False 

190 

191 def unload(self): 

192 """Removes the plugin menu item and icon from QGIS GUI.""" 

193 

194 # print "** UNLOAD GRM" 

195 

196 for action in self.actions: 

197 self.iface.removePluginMenu(self.tr("&QGRM"), action) 

198 self.iface.removeToolBarIcon(action) 

199 # remove the toolbar 

200 del self.toolbar 

201 

202 # -------------------------------------------------------------------------- 

203 

204 def run(self): 

205 """Run method that loads and starts the plugin""" 

206 

207 if not self.pluginIsActive: 

208 self.pluginIsActive = True 

209 

210 # print "** STARTING GRM" 

211 

212 # dockwidget may not exist if: 

213 # first run of plugin 

214 # removed on close (see self.onClosePlugin method) 

215 if self.dockwidget is None: 

216 # Create the dockwidget (after translation) and keep reference 

217 self.dockwidget = GRMDockWidget() 

218 

219 # connect to provide cleanup on closing of dockwidget 

220 self.dockwidget.closingPlugin.connect(self.onClosePlugin) 

221 

222 # show the dockwidget 

223 # TODO: fix to allow choice of dock location 

224 self.iface.addDockWidget(Qt.RightDockWidgetArea, self.dockwidget) 

225 self.dockwidget.show()