converter

How to convert pptx files to jpg or png (for each slide) on linux?

由 最后都变了- 提交于 2019-11-30 02:31:55
I want to convert a powerpoint presentation to multiple images. I already installed LibreOffice on my server and converting docx to pdf is no problem. pptx to pdf conversion does not work. I used following command line: libreoffice --headless --convert-to pdf filename.pptx Is there es way to convert pptx to pngs immediately or do I have to convert it to pdf first and then use ghostscript or something? And what about the quality settings? Is there a way to choose the resolution of the resulting images? Thanks in advance! EDIT: According to this link I was able to convert a pdf to images with

VAADIN: Why I can't set a converter to a ComboBox?

由 一曲冷凌霜 提交于 2019-11-29 22:13:43
问题 I've made a converter: public class BooleanToDateConverter implements Converter<Boolean, Date> { private static final long serialVersionUID = 1L; @Override public Date convertToModel(Boolean value, Class<? extends Date> targetType, Locale locale) throws com.vaadin.data.util.converter.Converter.ConversionException { if (value == true) { return new Date(); } else { return null; } } @Override public Boolean convertToPresentation(Date value, Class<? extends Boolean> targetType, Locale locale)

How to convert string to long [duplicate]

由 孤者浪人 提交于 2019-11-29 22:03:37
This question already has an answer here: How to convert String to long in Java? 8 answers how do you convert a string into a long. for int you int i = 3423; String str; str = str.valueOf(i); so how do you go the other way but with long. long lg; String Str = "1333073704000" lg = lg.valueOf(Str); This is a common way to do it: long l = Long.parseLong(str); There is also this method: Long.valueOf(str); Difference is that parseLong returns a primitive long while valueOf returns a new Long() object. The method for converting a string to a long is Long.parseLong . Modifying your example: String s

bytes to human readable, and back. without data loss

由 狂风中的少年 提交于 2019-11-29 18:37:36
问题 I need to convert strings which contain the memory usage in bytes, like: 1048576 (which is 1M) into exactly that, a human-readable version, and visa-versa. Note : I looked here already: Reusable library to get human readable version of file size? And here (even though it isn't python): How to convert human readable memory size into bytes? Nothing so far helped me, so I looked elsewhere. I have found something that does this for me here: http://code.google.com/p/pyftpdlib/source/browse/trunk

How can I convert html.slim files to html or html.erb?

由 可紊 提交于 2019-11-29 18:21:42
问题 I need to convert the html.slim files in my Ruby on Rails application to html.erb. Is there any easy way to do it? I tried many options listed in Stack Overflow and other sites. But nothing worked for me. I found a converter http://slim2html.raving.systems/ and a html to slim converter http://html2slim.herokuapp.com/ . It is not of my use since it does not work the other way around. Should I have to do it manually? Please help. 回答1: You can! First, make sure you have already installed slim

Convert XML latin1 to UTF-8 and other way around

由 夙愿已清 提交于 2019-11-29 18:13:24
I am trying to convert an XML file from Latin1 to UTF-8 and the other way around. I have been doing some tests, but I fail to succeed this. I'm using Get-Content C:\inputfile.xml | Set-Content -Encoding utf8 C:\outputfile.xml But this is not converting anything. So I tried to give the encoding in the Get-Content , but Latin1 is not recognized in PowerShell (or that's what the error message is telling me). What's the best way to get this? The fastest method, especially with large XML files, is to use .NET System.IO.File class. Use ReadAllText with explicitly provided Latin-1 encoding: [IO.File]

Convert a String of numbers to an Array/Vector of ints in Rust

由 醉酒当歌 提交于 2019-11-29 18:07:11
问题 I'm writing on STDIN a string of numbers (e.g "4 10 30 232312") and I want to read that and convert to an array of int (or a vector) in Rust, can't find the right way, so far I have: use std::io; fn main() { let mut reader = io::stdin(); let numbers = reader.read_line().unwrap(); } Thank you in advance 回答1: Updated for Rust 1.x You can do something like this: use std::io::{self, BufRead}; // (a) fn main() { let reader = io::stdin(); let numbers: Vec<i32> = reader.lock() // (0) .lines().next()

Python: Converting string to timestamp with microseconds

由 …衆ロ難τιáo~ 提交于 2019-11-29 17:48:04
问题 I would like to convert string date format to timestamp with microseconds I try the following but not giving expected result: """input string date -> 2014-08-01 04:41:52,117 expected result -> 1410748201.117""" import time import datetime myDate = "2014-08-01 04:41:52,117" timestamp = time.mktime(datetime.datetime.strptime(myDate, "%Y-%m-%d %H:%M:%S,%f").timetuple()) print timestamp > 1410748201.0 Where did the milliseconds go? 回答1: There is no slot for the microseconds component in a time

Boolean to Visibility Converter

由 时光毁灭记忆、已成空白 提交于 2019-11-29 17:32:47
how do i do something like this <BooleanToVisibilityConverter x:Key="BoolToVis"/> <WrapPanel> <TextBlock Text="{Binding ElementName=ConnectionInformation_ServerName,Path=Text}"/> <Image Source="Images/Icons/Select.ico" Margin="2" Height="15" Visibility="{Binding SQLConnected,Converter={StaticResource BoolToVis},ConverterParameter=true}"/> <Image Source="Images/Icons/alarm private.ico" Margin="2" Height="15" Visibility="{Binding SQLConnected,Converter={StaticResource BoolToVis},ConverterParameter=false}"/> </WrapPanel> is there a way to use the Boolean to vis converter but inverted without

Is it possible to automatically convert java code to PHP?

由 我是研究僧i 提交于 2019-11-29 17:25:55
问题 Is there are tools for converting java code to php? I have source code of java library and I need it to convert to php. 回答1: It is possible to automatically convert it. This is called a source to source compiler. Normally when you compile software, the parser will build an abstract syntax tree and convert this into the target machine language code. But it is just as possible to have a compiler convert this into another high level (compilable) language. Java is a strongly typed language, and
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