def add_plugin_pages(self, pages) -> None:
"""
Add pages from the plugin to the side pabel.
:param pages: List of plugin page classes to create and attach to the side panel.
"""
def safe_connect(method, to):
try:
method.connect(to)
except AttributeError:
pass
for PageClass in pages:
action = QAction(self.menutoolbar)
text = PageClass.title.ljust(13)
action.setIconText(text)
action.setIcon(QIcon(PageClass.icon))
action.setCheckable(True)
if PageClass.projectpage:
action.setVisible(False)
self.projectbuttons.append(action)
self.menutoolbar.insertAction(self.spaceraction, action)
else:
self.menutoolbar.insertAction(self.actionProject, action)
pagewidget = PageClass(plugins.api, self)
safe_connect(RoamEvents.selectionchanged,
pagewidget.selection_changed)
safe_connect(RoamEvents.projectloaded, pagewidget.project_loaded)
pageindex = self.stackedWidget.insertWidget(-1, pagewidget)
action.setProperty('page', pageindex)
self.pluginactions.append(action)
self.menuGroup.addAction(action)
class LockZoomToTiles:
def __init__(self, iface):
self.iface = iface
self.canvas = iface.mapCanvas()
self.epsg3857 = QgsCoordinateReferenceSystem('EPSG:3857')
self.epsg4326 = QgsCoordinateReferenceSystem('EPSG:4326')
self.islocking = False
def initGui(self):
'''Initialize Lock Zoom to Tiles GUI.'''
icon = QIcon()
icon.addFile(os.path.dirname(__file__) + "/images/zoomUnlocked.png",
state=QIcon.Off)
icon.addFile(os.path.dirname(__file__) + "/images/zoomLocked.png",
state=QIcon.On)
self.action = QAction(icon, "Lock zoom scale", self.iface.mainWindow())
self.action.setObjectName('lockZoom')
self.action.triggered.connect(self.lockIt)
self.action.setCheckable(True)
self.iface.addPluginToMenu("Lock zoom to tile scale", self.action)
self.iface.addToolBarIcon(self.action)
icon = QIcon(os.path.dirname(__file__) + '/images/help.png')
self.helpAction = QAction(icon, "Help", self.iface.mainWindow())
self.helpAction.triggered.connect(self.help)
self.iface.addPluginToMenu('Lock zoom to tile scale', self.helpAction)
self.checkCrs()
self.canvas.destinationCrsChanged.connect(self.checkCrs)
self.canvas.layersChanged.connect(self.checkCrs)
def unload(self):
'''Unload from the QGIS interface'''
self.iface.removePluginMenu('Lock zoom to tile scale', self.action)
self.iface.removeToolBarIcon(self.action)
self.iface.removePluginMenu("Lock zoom to tile scale", self.helpAction)
self.canvas.destinationCrsChanged.disconnect(self.checkCrs)
if self.islocking == True:
try:
self.canvas.scaleChanged.disconnect(self.lockIt)
except Exception:
pass
def help(self):
'''Display a help page'''
url = QUrl.fromLocalFile(os.path.dirname(__file__) +
"/index.html").toString()
webbrowser.open(url, new=2)
def lockIt(self):
'''Set the focus of the copy coordinate tool'''
if self.action.isChecked():
self.zoomTo()
if self.islocking == False:
self.islocking = True
self.canvas.scaleChanged.connect(self.zoomTo)
self.action.setText("Unlock zoom scale")
self.action.setIconText("Unlock zoom scale")
else:
if self.islocking == True:
self.canvas.scaleChanged.disconnect(self.zoomTo)
self.islocking = False
self.action.setText("Lock zoom scale")
self.action.setIconText("Lock zoom scale")
def zoomTo(self):
crs = self.canvas.mapSettings().destinationCrs()
mupp = self.canvas.mapUnitsPerPixel()
if crs == self.epsg3857:
r = 0
for i in range(0, len(r3857)):
r = i
if r3857[i] > mupp:
if i > 0 and (r3857[i] - mupp > mupp - r3857[i - 1]):
r = i - 1
break
if not math.isclose(r3857[r], mupp, rel_tol=1e-5):
self.canvas.zoomByFactor(r3857[r] /
self.canvas.mapUnitsPerPixel())
else:
r = 0
for i in range(0, len(r4326)):
r = i
if r4326[i] > mupp:
if i > 0 and (r4326[i] - mupp > mupp - r4326[i - 1]):
r = i - 1
break
if not math.isclose(r4326[r], mupp, rel_tol=1e-5):
self.canvas.zoomByFactor(r4326[r] /
self.canvas.mapUnitsPerPixel())
def checkCrs(self):
crs = self.canvas.mapSettings().destinationCrs()
numlayers = self.canvas.layerCount()
if (crs == self.epsg3857 or crs == self.epsg4326) and numlayers > 0:
self.action.setEnabled(True)
else:
self.action.setEnabled(False)
self.action.setChecked(False)
self.lockIt()
