关于LibreOffice Calc的Python UNO,重新定位游标

时间:2018-05-27 01:39:38

标签: python libreoffice openoffice.org uno

LibreOffice 5.3,python 3.53,VOID Linux

这更像是一个uno问题,而不是一个python问题。下面的代码对3个单元格进行了简单的更新。在工作表上配置的3个按钮调用dowriteonce()dowritetwice()和dowritethrice(),它们都会更新和工作,就像您可能希望将数字和文本写入选定的单元格一样。

问题出现的地方是,当用户在UI中编辑单元格时,将阻止通过执行该功能对该单元格的任何后续更新。因此,只需在calc UI中单击单元格C4,就可以防止writethrice()函数更新单元格C4。如果我删除内容并单击UI中的另一个单元格,例如C5,那么一切都会正常工作,单击按钮时C4会更新。

我想要做的是在执行之前将UI编辑光标重新定位到未使用的单元格,以防止这种情况发生。用户复制粘贴会将活动光标留在不可预测的位置,如果我无法隔离光标,则会进行计算。

所以问题是,如何通过UNO API将UI编辑光标移动到命名单元格?或者如果它更容易,只需暂时停用它。

Python:

import socket
import sys
import re
import uno
import unohelper

class ODSCursor(unohelper.Base):

    # predeclare class properties

    ctx=None
    desktop=None
    model=None
    activesheet=None
    counter=0 
    scooby="Scooby"

    # import namespaces

    def __init__(self):
        import socket
        import uno
        import unohelper
        import sys
        import re

    # initialize uno handle only once and get the first sheet

    @classmethod
    def sheet1(cls,*args):
        if cls.activesheet is not None:
                return (cls.activesheet)
        cls.ctx = uno.getComponentContext() 
        cls.desktop = cls.ctx.ServiceManager.createInstanceWithContext("com.sun.star.frame.Desktop", cls.ctx)
        cls.model = cls.desktop.getCurrentComponent()
        # cls.activesheet = cls.model.Sheets.getByName("Sheet1")
        cls.activesheet = cls.model.Sheets.getByIndex(0)
        return (cls.activesheet)

    @classmethod
    def writeonce(self,*args):
        self.counter += 1
        cell_b1 = self.activesheet.getCellRangeByName("B1") 
        cell_b1.String = self.counter

    @classmethod
    def writetwice(self,*args):
        self.counter += 1
        cell_b2 = self.activesheet.getCellRangeByName("B2") 
        cell_b2.String = self.counter 

    @classmethod
    def writescooby(self,*args):
        cell_c4 = self.activesheet.getCellRangeByName("C4") 
        cell_c4.String = self.scooby

### BUTTON BOUND FUNCTIONS ###

def dowriteonce(*args):
    Odc = ODSCursor()   # create the object
    Odc.sheet1()
    Odc.writeonce()

def dowritetwice(*args):
    Odc = ODSCursor() # create the object
    Odc.sheet1()
    Odc.writetwice()

def dowritethrice(*args):
    Odc = ODSCursor() # create the object
    Odc.sheet1()
    Odc.writescooby()

1 个答案:

答案 0 :(得分:1)

在以下代码中,在更改值之前取消选择单元格,然后再次选择。这样,即使用户处于编辑模式,也可以修改单元格。

似乎对Python类方法和变量存在一些混淆,所以我也改变了这些部分。

import uno
import unohelper

SCOOBY = "Scooby"

class ODSCursor(unohelper.Base):
    def __init__(self):
        self.ctx = None
        self.desktop = None
        self.document = None
        self.controller = None
        self.sheet = None
        self.counter = 0

    def sheet1(self):
        """Initialize uno handle only once and get the first sheet."""
        if self.sheet is not None:
            return self.sheet
        self.ctx = uno.getComponentContext()
        self.desktop = self.ctx.ServiceManager.createInstanceWithContext(
            "com.sun.star.frame.Desktop", self.ctx)
        self.document = self.desktop.getCurrentComponent()
        self.controller = self.document.getCurrentController()
        self.sheet = self.controller.getActiveSheet()
        return self.sheet

    def writeonce(self):
        self.writeval("B1", self.inc())

    def writetwice(self):
        self.writeval("B2", self.inc())

    def writescooby(self):
        self.writeval("C4", SCOOBY)

    def writeval(self, address, value):
        self.deselect()
        cell = self.sheet.getCellRangeByName(address)
        cell.String = value
        self.controller.select(cell)

    def deselect(self):
        """Select cell A1, then select nothing."""
        cell_a1 = self.sheet.getCellByPosition(0, 0)
        self.controller.select(cell_a1)
        emptyRanges = self.document.createInstance(
            "com.sun.star.sheet.SheetCellRanges")
        self.controller.select(emptyRanges)

    def inc(self):
        """Increment the counter and return the value."""
        self.counter += 1
        return self.counter

odsc = ODSCursor()


### BUTTON BOUND FUNCTIONS ###

def dowriteonce(dummy_oEvent):
    odsc.sheet1()
    odsc.writeonce()

def dowritetwice(dummy_oEvent):
    odsc.sheet1()
    odsc.writetwice()

def dowritethrice(dummy_oEvent):
    odsc.sheet1()
    odsc.writescooby()