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path: root/ishtar_common/libreoffice.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import time

import uno
from com.sun.star.awt import Size
from com.sun.star.beans import PropertyValue
from com.sun.star.connection import NoConnectException
from com.sun.star.sheet.ValidationType import LIST

from com.sun.star.table import CellRangeAddress, CellAddress

from ishtar_common.utils import num2col

from django.conf import settings


RETRY = 1


class UnoClient:
    def __init__(self):
        self.service_manager = None
        self.remote_context = None
        self.desktop = None
        self.connect()

    def connect(self):
        local_context = uno.getComponentContext()

        resolver = local_context.ServiceManager.createInstanceWithContext(
            "com.sun.star.bridge.UnoUrlResolver", local_context)
        connection = "socket,host={},port={};urp".format(
            settings.LIBREOFFICE_HOST, settings.LIBREOFFICE_PORT
        )
        try:
            self.service_manager = resolver.resolve(
                "uno:{};StarOffice.ServiceManager".format(connection))
        except NoConnectException:
            self.service_manager = None
        # self.service_manager = self.service_manager.ServiceManager

    def create_context(self):
        if self.remote_context and self.desktop:
            return
        try_nb = 0
        while not self.service_manager or try_nb > RETRY:
            self.connect()
            try_nb += 1
        if not self.service_manager:
            return
        self.remote_context = self.service_manager.getPropertyValue(
            "DefaultContext")
        self.desktop = self.service_manager.createInstanceWithContext(
            "com.sun.star.frame.Desktop", self.remote_context)

    def create_document(self, app):
        self.create_context()
        if not self.remote_context or not self.desktop:
            return
        url = "private:factory/{}".format(app)
        return self.desktop.loadComponentFromURL(url, "_blank", 0, ())

    def get_document(self, filename, propval=None):
        self.create_context()
        url = "file://{}".format(filename)
        if not propval:
            propval = ()
        return self.desktop.loadComponentFromURL(url, "_blank", 0, propval)


class UnoCalc(UnoClient):
    def create_calc(self):
        return self.create_document('scalc')

    def open_calc(self, filename):
        return self.get_document(filename)

    def save_calc(self, calc, filename):
        url = "file://{}".format(filename)
        args = (PropertyValue(Name="FilterName", Value="Calc8"),)
        calc.storeToURL(url, args)

    def get_sheet_number(self, calc):
        sheets = calc.getSheets()
        return sheets.Count

    def get_sheet(self, calc, sheet_index):
        return calc.getSheets().getByIndex(sheet_index)

    def get_or_create_sheet(self, calc, sheet_index, name=None):
        sheets = calc.getSheets()
        while sheets.Count < (sheet_index + 1):
            if name and sheets.Count == sheet_index:
                sheet_name = name
            else:
                sheet_name = "Sheet{}".format(sheets.Count + 1)
            sheets.insertNewByName(sheet_name, sheets.Count)
        return calc.getSheets().getByIndex(sheet_index)

    def sheet_get_last_row_number(self, sheet):
        cursor = sheet.createCursor()
        cursor.gotoEndOfUsedArea(False)
        return cursor.getRangeAddress().EndRow + 1

    def sheet_get_data(self, sheet, last_column=None):
        if not last_column:
            # assume the first line is header with no empty columns
            last_column = 0
            has_data = True
            while has_data:
                has_data = sheet.getCellByPosition(last_column, 0).getString()
                if not has_data:
                    break
                last_column += 1
        last_row = self.sheet_get_last_row_number(sheet)
        data = []
        for row in range(last_row):
            data.append([])
            for col in range(last_column):
                value = sheet.getCellByPosition(col, row).getString()
                data[-1].append(value)
        return data

    def create_list(self, sheet, col, start_row, title, items):
        items = [title] + items
        row_idx = 0
        for row_idx, item in enumerate(items):
            cell = sheet.getCellByPosition(col, start_row + row_idx)
            if not row_idx:  # bold for title
                cell.CharWeight = 150
            cell.setString(item)
        return start_row + row_idx

    def set_cell_validation_list(
            self, sheet, col, row_min, row_max, data_sheet, data_col,
            data_row_range):
        validation = sheet.getCellByPosition(col, row_min).Validation
        validation.setPropertyValue("Type", LIST)

        dat_col_str = num2col(data_col + 1)
        form = "$'{sheet}'.${col}${row_min}:${col}${row_max}".format(
            sheet=data_sheet.getName(), col=dat_col_str,
            row_min=data_row_range[0] + 1, row_max=data_row_range[1] + 1)
        validation.setFormula1(form)
        validation.setPropertyValue("ShowErrorMessage", True)

        col_str = num2col(col)
        ooorange = "{}{}:{}{}".format(
            col_str, row_min + 1, col_str, row_max + 1)
        sheet.getCellRangeByName(ooorange).setPropertyValue(
            "Validation", validation)

    def load_graphic_into_doc(self, calc, image_path):
        # WIP
        bitmap_component = calc.createInstance(
            "com.sun.star.drawing.BitmapTable"
        )
        oo_id = "ishtar-gen-image-{}".format(time.time())
        bitmap_component.insertByName(oo_id, image_path)
        internal_url = bitmap_component.getByName(oo_id)

        img_temp = calc.createInstance(
            "com.sun.star.drawing.GraphicObjectShape")
        img_temp.setPropertyValue("GraphicURL", internal_url)
        size = Size()
        size.Width = 3000
        size.Height = 3000
        img_temp.setSize(size)
        # bitmap_component.removeByName(oo_id)
        return img_temp

    def test(self):
        self.test_2()

    def test_1(self):
        title = "Test"
        lst = ["item 1", "item 2"]

        if not lst:  # no list
            return
        calc = self.create_calc()
        lst_sheet = self.get_or_create_sheet(calc, 1, "List types")

        lst_col, lst_row = 0, 0
        end_row = self.create_list(lst_sheet, lst_col, lst_row, title, lst)
        main_sheet = self.get_or_create_sheet(calc, 0)
        self.set_cell_validation_list(main_sheet, 0, 0, 200, lst_sheet, lst_col,
                                      [lst_row + 1, end_row])
        self.save_calc(calc, "/tmp/test.ods")

    def test_2(self):
        propval = PropertyValue()
        propval.Name = 'Hidden'
        propval.Value = True
        filename = "/tmp/main.ods"
        calc = self.get_document(filename, (propval,))
        sheet = self.get_or_create_sheet(calc, 0)
        validation = sheet.getCellByPosition(0, 0).Validation
        for k in dir(validation):
            if k.startswith("get"):
                try:
                    print(k, getattr(validation, k)())
                except:
                    pass

    def test_image(self):
        # WIP
        calc = self.create_calc()
        sheet = calc.getSheets().getByIndex(0)
        cell = sheet.getCellByPosition(1, 1)
        image_path = "file:///tmp/test.jpg"
        img_temp = self.load_graphic_into_doc(calc, image_path)

        draw_page = calc.getDrawPages().getByIndex(0)

        img_temp.setPosition(cell.Position)

        draw_page.add(img_temp)
        url = "file:///tmp/test.ods"
        args = (PropertyValue(Name="FilterName", Value="Calc8"),)
        calc.storeToURL(url, args)