def __init__(self, iface):
super().__init__()
self.iface = iface
stack = QgsPanelWidgetStack()
self.main_panel = QgsPanelWidget()
self.main_panel.setDockMode(True)
layout = QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setMargin(0) # pylint: disable=no-value-for-parameter
self.main_panel.setLayout(layout)
self.setWindowTitle(self.tr('Project Colors'))
self.setObjectName('project_colors_dock')
scheme = [
s for s in QgsApplication.colorSchemeRegistry().schemes()
if isinstance(s, QgsProjectColorScheme)
]
self.color_list = QgsColorSchemeList(None, scheme[0])
layout.addWidget(self.color_list)
# defer updates for a short timeout -- prevents flooding with signals
# when doing lots of color changes, improving app responsiveness
self.timer = QTimer(self)
self.timer.setSingleShot(True)
self.timer.setInterval(100)
self.block_updates = False
def apply_colors():
"""
Applies color changes to canvas and project
"""
self.block_updates = True
self.color_list.saveColorsToScheme()
self.block_updates = False
self.iface.mapCanvas().refreshAllLayers()
self.timer.timeout.connect(apply_colors)
def colors_changed():
"""
Triggers a deferred update of the project colors
"""
if self.timer.isActive():
return
self.timer.start()
self.color_list.model().dataChanged.connect(colors_changed)
stack.setMainPanel(self.main_panel)
self.setWidget(stack)
QgsProject.instance().projectColorsChanged.connect(
self.repopulate_list)
# coding: utf-8 from qgis.core import QgsColorSchemeRegistry, QgsCustomColorScheme from qgis.gui import QgsColorSchemeList, QgsColorSchemeModel color_scheme_registry = QgsColorSchemeRegistry.instance() schemes = color_scheme_registry.schemes() project_scheme = [s for s in schemes if isinstance(s, QgsCustomColorScheme)][0] color_scheme_list = QgsColorSchemeList() # Doing color_scheme_model = QgsColorSchemeModel(project_scheme) color_scheme_list.setModel(color_scheme_model) # or below do the same: change color in the component # First option is lower level when you need to reuse # the model in another component color_scheme_list.setScheme(project_scheme) color_scheme_list.show()
# coding: utf-8 from qgis.core import QgsColorSchemeRegistry, QgsCustomColorScheme from qgis.gui import QgsColorSchemeList color_scheme_registry = QgsColorSchemeRegistry.instance() schemes = color_scheme_registry.schemes() project_scheme = [s for s in schemes if isinstance(s, QgsCustomColorScheme)][0] color_scheme_list = QgsColorSchemeList(scheme=project_scheme) color_scheme_list.show()
