Author: bugman
Date: Wed Jun 8 12:13:37 2011
New Revision: 12891
URL: http://svn.gna.org/viewcvs/relax?rev=12891&view=rev
Log:
Implemented the deletion of cell contents in the wx.grid element for Rx peak
lists.
This requires a complex algorithm for handling wx.grid selections!
Modified:
1.3/gui/components/spectrum.py
Modified: 1.3/gui/components/spectrum.py
URL:
http://svn.gna.org/viewcvs/relax/1.3/gui/components/spectrum.py?rev=12891&r1=12890&r2=12891&view=diff
==============================================================================
--- 1.3/gui/components/spectrum.py (original)
+++ 1.3/gui/components/spectrum.py Wed Jun 8 12:13:37 2011
@@ -31,6 +31,7 @@
# relax module imports.
from data import Relax_data_store; ds = Relax_data_store()
+from status import Status; status = Status()
# relaxGUI module imports.
from gui.filedialog import multi_openfile, opendir, openfile
@@ -130,6 +131,7 @@
# Bind some events.
self.peaklist.Bind(wx.grid.EVT_GRID_EDITOR_SHOWN, self.editor)
+ self.peaklist.Bind(wx.EVT_KEY_DOWN, self.event_key_down)
# Add grid to sizer, with spacing.
sizer.Add(self.peaklist, -1, wx.EXPAND, 0)
@@ -166,6 +168,155 @@
# Veto the event so the cell is not editable.
event.Veto()
+
+
+ def event_key_down(self, event):
+ """Control what happens when a key is pressed.
+
+ @param event: The wx event.
+ @type event: wx event
+ """
+
+ # Clear cell contents (delete key).
+ if event.GetKeyCode() == wx.WXK_DELETE:
+ # Get the cell selection.
+ cells = self.get_selection()
+
+ # Debugging printout.
+ if status.debug:
+ print(cells)
+
+ # Loop over the cells.
+ for cell in cells:
+ # Set to the empty string.
+ self.peaklist.SetCellValue(cell[0], cell[1], '')
+
+
+ def get_all_coordinates(self, top_left, bottom_right):
+ """Convert the cell range into a coordinate list.
+
+ @param top_left: The top left hand coordinate.
+ @type top_left: list or tuple
+ @param bottom_right: The bottom right hand coordinate.
+ @type bottom_right: list or tuple
+ @return: The list of tuples of coordinates of all
cells.
+ @rtype: list of tuples
+ """
+
+ # Init.
+ cells = []
+
+ # Loop over the x-range.
+ for x in range(top_left[0], bottom_right[0]+1):
+ # Loop over the y-range.
+ for y in range(top_left[1], bottom_right[1]+1):
+ # Append the coordinate.
+ cells.append((x, y))
+
+ # Return the coordinates.
+ return cells
+
+
+ def get_selection(self):
+ """Determine which cells are selected.
+
+ There are three possibilities for cell selections in a wx.grid.
These are:
+
+ - Single cell selection (this is not highlighted).
+ - Multiple cells are selected.
+ - Column selection.
+ - Row selection.
+
+ @return: An array of the cell selection coordinates.
+ @rtype: list of tuples of int
+ """
+
+ # First try to get the coordinates.
+ top_left = self.peaklist.GetSelectionBlockTopLeft()
+ bottom_right = self.peaklist.GetSelectionBlockBottomRight()
+
+ # Or the selection.
+ selection = self.peaklist.GetSelectedCells()
+ col = self.peaklist.GetSelectedCols()
+ row = self.peaklist.GetSelectedRows()
+
+ # Debugging printout.
+ if status.debug:
+ print("\nTop left: %s" % top_left)
+ print("Bottom right: %s" % bottom_right)
+ print("selection: %s" % selection)
+ print("col: %s" % col)
+ print("row: %s" % row)
+
+ # Column selection.
+ if col:
+ # Debugging printout.
+ if status.debug:
+ print("Column selection")
+
+ # Return the coordinates of the selected columns.
+ return self.get_all_coordinates([0, col[0]], [self.num_rows-1,
col[-1]])
+
+ # Row selection.
+ elif row:
+ # Debugging printout.
+ if status.debug:
+ print("Row selection")
+
+ # Return the coordinates of the selected rows.
+ return self.get_all_coordinates([row[0], 0], [row[-1], 1])
+
+ # Multiple block selection.
+ elif top_left and not selection:
+ # Debugging printout.
+ if status.debug:
+ print("Multiple block selection.")
+
+ # The cell list.
+ cells = []
+
+ # Loop over the n blocks.
+ for n in range(len(top_left)):
+ # Append the cells.
+ cells = cells + self.get_all_coordinates(top_left[n],
bottom_right[n])
+
+ # Return the selected cells.
+ return cells
+
+ # Single cell.
+ elif not selection and not top_left:
+ # Debugging printout.
+ if status.debug:
+ print("Single cell.")
+
+ # The position.
+ pos = self.peaklist.GetGridCursorRow(),
self.peaklist.GetGridCursorCol()
+
+ # Return the coordinate as a list.
+ return [pos]
+
+ # Complex selection.
+ elif selection:
+ # Debugging printout.
+ if status.debug:
+ print("Complex selection.")
+
+ # The cell list.
+ cells = []
+
+ # Loop over the n blocks.
+ for n in range(len(top_left)):
+ # Append the cells.
+ cells = cells + self.get_all_coordinates(top_left[n],
bottom_right[n])
+
+ # Return the selection.
+ return cells + selection
+
+ # Unknown.
+ else:
+ # Debugging printout.
+ if status.debug:
+ print("Should not be here.")
def load_delay(self, event, vc=False):
r12891 - /1.3/gui/components/spectrum.py