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Pan & Zoom Image
...enderTransformOrigin on the image is then set to 0.5,0.5 so the image will start zooming on the center of the image. The RenderTransform is also set to a TransformGroup containing a ScaleTransform and a TranslateTransform.
I then handled the MouseWheel event on the image to implement zooming
priva...
Polymorphism with gson
...json string with Gson.
I receive an array of commands. The command can be start, stop , some other type of command. Naturally I have polymorphism, and start/stop command inherit from command.
...
Frontend tool to manage H2 database [closed]
...rowse port 8082:
$ java -cp /opt/h2/bin/h2.jar org.h2.tools.Server -help
Starts the H2 Console (web-) server, TCP, and PG server.
Usage: java org.h2.tools.Server
When running without options, -tcp, -web, -browser and -pg are started.
Options are case sensitive. Supported options are:
[-help] or [...
C# 'is' operator performance
...d) each test looks like the following
static void IsTest()
{
DateTime start = DateTime.Now;
for (int i = 0; i < 10000000; i++)
{
MyBaseClass a;
if (i % 2 == 0)
a = new MyClassA();
else
a = new MyClassB();
bool b = a is MyClassB;...
iPhone Simulator suddenly started running very slow
... I tried this but it does not seem to make any difference. I also tried restarting after toggling, but it is still very slow. Also the speed issue doesn't seem to be limited to animation.
– Finglish
Mar 11 '13 at 21:16
...
What does multicore assembly language look like?
...ocessor), the Bootstrap thread (usually thread 0 in core 0 in processor 0) starts up fetching code from address 0xfffffff0. All the other threads start up in a special sleep state called Wait-for-SIPI. As part of its initialization, the primary thread sends a special inter-processor-interrupt (IPI...
Checking if an Android application is running in the background
.... Just check if the number of stopped activities is equal to the number of started activities. If they're equal, your application is being backgrounded. If there are more started activities, your application is still visible. If there are more resumed than paused activities, your application is not ...
Get program execution time in the shell
...
#!/bin/bash
START=$(date +%s)
# do something
# start your script work here
ls -R /etc > /tmp/x
rm -f /tmp/x
# your logic ends here
END=$(date +%s)
DIFF=$(( $END - $START ))
echo "It took $DIFF seconds"
...
PHP: Return all dates between two dates in an array [duplicate]
...end date. The $period would not include '2010-10-05'. You can exclude the start date with the 4th parameter DatePeriod::EXCLUDE_START_DATE. In the end, it does not even return an array of strings (as asked). Great answer, but to the wrong question.
– Maxime
Ju...
How do I get elapsed time in milliseconds in Ruby?
...olution which can easily be converted.
For example:
def time_diff_milli(start, finish)
(finish - start) * 1000.0
end
t1 = Time.now
# arbitrary elapsed time
t2 = Time.now
msecs = time_diff_milli t1, t2
You will need to decide whether to truncate that or not.
...