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# -*- coding: utf-8 -*- |
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HANDLE_SIZE = 8 |
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import dabo |
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dabo.ui.loadUI("wx") |
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import dabo.dEvents as dEvents |
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class DragHandle(dabo.ui.dPanel): |
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""" The class for all the handles used to indicate the selected control |
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that are dragged to resize the control. It has properties indicating |
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whether it controls resizing the control in the up, right, down or left |
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directions. These values are determined from the name of the handle, |
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which follows a simple naming convention: |
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First character: T, M, B => Top, Middle or Bottom |
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Second character: L, M, R = > Left, Middle or Right |
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When the contol is dragged, it passes the event up to its parent. The |
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parent object then determines the affected control, and passes the |
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event on to that control. |
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""" |
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def __init__(self, parent, handleName): |
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sz = (HANDLE_SIZE, HANDLE_SIZE) |
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super(DragHandle, self).__init__(parent, Size=sz, Visible=False, |
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BackColor="blue") |
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self.handleName = handleName |
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if self.handleName in ("TL", "BR"): |
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cursor = dabo.ui.dUICursors.Cursor_Size_NWSE |
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elif self.handleName in ("TR", "BL"): |
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cursor = dabo.ui.dUICursors.Cursor_Size_NESW |
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elif self.handleName in ("TM", "BM"): |
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cursor = dabo.ui.dUICursors.Cursor_Size_NS |
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else: |
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cursor = dabo.ui.dUICursors.Cursor_Size_WE |
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self.MousePointer = dabo.ui.dUICursors.getStockCursor(cursor) |
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self.selection = None |
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ud = handleName[0] |
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lr = handleName[1] |
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self.up = (ud == "T") |
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self.down = (ud == "B") |
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self.left = (lr == "L") |
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self.right = (lr == "R") |
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self.bindEvent(dEvents.MouseLeftDown, self.onLeftDown) |
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self.bindEvent(dEvents.MouseLeftUp, self.onLeftUp) |
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self.bindEvent(dEvents.MouseMove, self.onMouseDrag) |
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self.dragging = False |
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def onLeftDown(self, evt): |
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self.dragging = True |
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self.Form.startResize(self, evt) |
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def onLeftUp(self, evt): |
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self.dragging = False |
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self.Form.processLeftUp(self, evt) |
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evt.stop() |
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|
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def onMouseDrag(self, evt, shft=None): |
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if shft is None: |
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try: |
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shft = evt.EventData["shiftDown"] |
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except AttributeError: |
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shft = False |
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if self.dragging: |
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self.Form.resizeCtrl(self, evt) |
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