Column Widths of Dropdown List (table mode)

Ignition
9

This is great! I appreciate all the work you put into this, it works perfectly.

I altered the code a bit to support multiple dropdowns on a page. Now all that's needed to format additional dropdowns, is an addition of a dictionary with the appropriate keys to the "dropdowns" list.

I also added support for configuring the width of multiple columns (In the case where more than 2 columns might be displayed).

# list of dictionaries with path to dropdown and max/preffered width parameters
dropdowns = [
				{
					"dropdown": system.gui.getParentWindow(event).getComponentForPath('Root Container.Dropdown'),	# Path to dropdown component
					"max_width"      : [70],																		# list of max collumn widths
					"preffered_width": [70]																			# list of preffered collumn widths
				},
				
				{
					"dropdown": system.gui.getParentWindow(event).getComponentForPath('Root Container.Dropdown 1'),	# Path to dropdown component
					"max_width"      : [100, 70],																	# list of max collumn widths
					"preffered_width": [100, 70]																	# list of preffered collumn widths
				},
			]


###################################################################################################

from com.inductiveautomation.factorypmi.application.components.combobox import TableComboBoxPopup
from javax.swing import JTable, JScrollPane, JViewport
from java.awt.event import MouseAdapter

#Can be launched from a button for testing but belongs in the parent window's internalFrameOpened event handler
def getPopup(dropdown):
	ui = dropdown.getUI()
	if ui is not None:
		for child in range(ui.getAccessibleChildrenCount(dropdown)):
			component = ui.getAccessibleChild(dropdown, child)
			if isinstance(component, TableComboBoxPopup):
				return component

def getScrollPane(dropdown):
	popup = getPopup(dropdown)
	if popup is not None:
		for component in popup.getComponents():
			if isinstance(component, JScrollPane):
				return component

def getViewport(dropdown):
	scrollPane = getScrollPane(dropdown)
	if scrollPane is not None:
		for component in scrollPane.getComponents():
			if isinstance(component, JViewport):
				return component

def getTable(dropdown):
	viewport = getViewport(dropdown)
	if viewport is not None:
		for component in viewport.getComponents():
			if isinstance(component, JTable):
				return component

class CustomMouseListener(MouseAdapter):
	def __init__(self, dropdown, maxWidth, preferredWidth):
		self.dropdown = dropdown
		self.maxWidth = maxWidth
		self.preferredWidth = preferredWidth
	
	def mouseClicked(self, event):
		setColumnWidths(self.dropdown, self.maxWidth, self.preferredWidth)

def setColumnWidths(dropdown, maxWidth, preferredWidth):
	if dropdown.isPopupVisible():
		dropdown.setPopupVisible(False)
	else:
		dropdown.setPopupVisible(True)
		
		for i in range(min(len(maxWidth), len(preferredWidth), dropdown.data.getColumnCount())):
			column = getTable(dropdown).getColumnModel().getColumn(i)
			if column is not None:
				column.setMaxWidth(maxWidth[i])
				column.setPreferredWidth(preferredWidth[i])
			else:
				print 'Column could not be found!'


for item in dropdowns:
	scrollPane = getScrollPane(item["dropdown"])
	scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER)
	table = getTable(item["dropdown"])
	table.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN)
	
	for mouseListener in item["dropdown"].getMouseListeners():
		item["dropdown"].removeMouseListener(mouseListener)
	item["dropdown"].addMouseListener(CustomMouseListener(item["dropdown"], item["max_width"], item["preffered_width"]))

( @Alessandro_Sanson )

2 Likes