DiskUsage: minor clean up

* remove unused code.
* make fPreviousSnapshot local.
* change app_flags to B_SINGLE_LAUNCH
when it is invoked by add-on reuses an already scanned volume

DiskUsage: added ability to cancel an ongoing scan. fixes #6801.

Also, progress now goes from 0.0 to 1.0 rather than from 0.00 to 100.00
(to avoid a * 100, followed by a / 100)

DiskUsage: remove path monitoring and "outdated view" notification

Was unreliable, too many files to monitor (would exceed too easily the 4096 files limit).

Tweak DiskUsage pie view colors and drawing
* Use colors from http://haiku-os.org/files/downloads/2007-03-20_haiku-color-palette.png
* The pie view used a simple multiplication to lighten the colors, leading to overflows. Use tint_color instead
* The outline of each pie slice was drawn with lines, which did not align perfectly. Use StrokeArc with a slightly bigger pen size than the colored area instead.

Screenshot of the result:
http://pulkomandy.tk/drop/diskusage.png/

Close #3223 with patch provided by Humdinger (which I adjusted to the current state of the code).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42964 a95241bf-73f2-0310-859d-f6bbb57e9c96

DiskUsage :
* add two missing break; (CID 3301, 3302)
* replace strcpy, strcat and sprintf by strlcpy, strlcat and snprintf
(CID 6804, 6805, 6806, 6807, 6808, 8962, 8963)
* remove a PrintToStream (left by accident for debugging purposes)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40631 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied yet another localization patch from Jorma Karvonen. Fixes #7169.

Beside of localization task some refactoring was performed:
- strings, stored previously in resources were moved from resource definition
file to cpp files at the place of using;
- cleanup of resource definitions and Common.cpp/Common.h.

Additionall tasks, made by S.Zharski:
- the rests of resource handling tasks were purged out from Common.cpp/Common.h;
- Common.h renamed to DiskUsage.h;
- the rests of code from Common.cpp merged into DiskUsage.cpp;
- the preprocessor tricks and magics targeted mainly for resources support
were removed;
- some code style fixes and "internationalization style" fixes were made.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40493 a95241bf-73f2-0310-859d-f6bbb57e9c96

DiskUsage: added ability to cancel an ongoing scan. fixes #6801.

Also, progress now goes from 0.0 to 1.0 rather than from 0.00 to 100.00
(to avoid a * 100, followed by a / 100)

DiskUsage: remove path monitoring and "outdated view" notification

Was unreliable, too many files to monitor (would exceed too easily the 4096 files limit).

Tweak DiskUsage pie view colors and drawing
* Use colors from http://haiku-os.org/files/downloads/2007-03-20_haiku-color-palette.png
* The pie view used a simple multiplication to lighten the colors, leading to overflows. Use tint_color instead
* The outline of each pie slice was drawn with lines, which did not align perfectly. Use StrokeArc with a slightly bigger pen size than the colored area instead.

Screenshot of the result:
http://pulkomandy.tk/drop/diskusage.png/

Close #3223 with patch provided by Humdinger (which I adjusted to the current state of the code).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42964 a95241bf-73f2-0310-859d-f6bbb57e9c96

DiskUsage :
* add two missing break; (CID 3301, 3302)
* replace strcpy, strcat and sprintf by strlcpy, strlcat and snprintf
(CID 6804, 6805, 6806, 6807, 6808, 8962, 8963)
* remove a PrintToStream (left by accident for debugging purposes)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40631 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied yet another localization patch from Jorma Karvonen. Fixes #7169.

Beside of localization task some refactoring was performed:
- strings, stored previously in resources were moved from resource definition
file to cpp files at the place of using;
- cleanup of resource definitions and Common.cpp/Common.h.

Additionall tasks, made by S.Zharski:
- the rests of resource handling tasks were purged out from Common.cpp/Common.h;
- Common.h renamed to DiskUsage.h;
- the rests of code from Common.cpp merged into DiskUsage.cpp;
- the preprocessor tricks and magics targeted mainly for resources support
were removed;
- some code style fixes and "internationalization style" fixes were made.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40493 a95241bf-73f2-0310-859d-f6bbb57e9c96