[EGIT PATCH 00/11] Support customizable label decorations

This series adds support for customizable label decorations, which is usefull for hiding selected decorations, or tweaking the format of the decoration text.

Decorations are edited using the new Team->Git->Label Decorations preference page, which is based off similar functionality from the existing CVS and SVN team providers.

Icons can be enabled and disabled individually, and text can be customized by reordering and editing the set of mapped variables. Boolean variables like 'dirty' and 'staged' can be customized by postfixing the variable name with a colon and a selected string that should be insert if the variable evaluates to true.

The two general options control traversal of child and parent elements during decoration. The first, 'Also re-decorate...', controls whether or not ancestor elements of the current decorated elment will also be scheduled for re-recoration. The second, 'Inspect dirty state...', controls whether decoration of container elements such as projects and folders should traverse child elements to decide if the container is dirty.

Disabling these options will improve performance for large trees.

The code should be solid enough for normal use, but I may have missed situations that the code does not handle -- resuling in crash and burn. If so, please let me know.

Known issues are:

  - If a project has a repository more than one level above the
    project directory decorations will fail.

  - When a Java resource is dirty, each parent package in the
    package hierarcy will appear dirty, even when the layout is
    set to 'flat'.

I've sprinkled the code with TODOs where I found possible future improvments. One such improvment is performance, where for example refactoring to use one shared status cache should help.

Tor Arne

PS: This is my first major patch to EGit, so apologies in advance
if I messed up the steps of the submit process in any way :)

Tor Arne Vestbø (11):
  Add support code to handle plugin property changes
  Use Set instead of array to keep track of change listeners
  Add a specialized team exception for Git
  Add new class ExceptionCollector for grouping exceptions
  Add new class SWTUtils with helper-methods for creating controls
  Implement basic customizable label decorations with preferences
  Add binding for name of the current branch
  Add icon decoration for tracked and untracked resources
  Implement decorations of dirty, staged, and conflicting resources
  Don't decorate every single resource on repository change
  Implement label decorations for folders and projects

 org.spearce.egit.core/META-INF/MANIFEST.MF         |    5 +-
 .../src/org/spearce/egit/core/GitException.java    |  168 +++
 .../core/internal/util/ExceptionCollector.java     |  128 +++
 .../spearce/egit/core/project/GitProjectData.java  |   33 +-
 org.spearce.egit.ui/.options                       |    8 +-
 org.spearce.egit.ui/icons/ovr/assumevalid.gif      |  Bin 64 -> 0 bytes
 org.spearce.egit.ui/icons/ovr/conflict.gif         |  Bin 64 -> 164 bytes
 org.spearce.egit.ui/icons/ovr/pending_add.gif      |  Bin 64 -> 0 bytes
 org.spearce.egit.ui/icons/ovr/pending_remove.gif   |  Bin 111 -> 0 bytes
 org.spearce.egit.ui/icons/ovr/shared.gif           |  Bin 106 -> 0 bytes
 org.spearce.egit.ui/icons/ovr/staged.gif           |  Bin 0 -> 114 bytes
 org.spearce.egit.ui/icons/ovr/staged_added.gif     |  Bin 0 -> 114 bytes
 org.spearce.egit.ui/icons/ovr/staged_removed.gif   |  Bin 0 -> 114 bytes
 org.spearce.egit.ui/icons/ovr/untracked.gif        |  Bin 0 -> 79 bytes
 org.spearce.egit.ui/plugin.properties              |    1 +
 org.spearce.egit.ui/plugin.xml                     |   12 +-
 .../src/org/spearce/egit/ui/Activator.java         |   70 ++-
 .../egit/ui/PluginPreferenceInitializer.java       |   13 +
 .../src/org/spearce/egit/ui/UIIcons.java           |   19 +-
 .../src/org/spearce/egit/ui/UIPreferences.java     |   19 +
 .../src/org/spearce/egit/ui/UIText.java            |   87 ++-
 .../src/org/spearce/egit/ui/internal/SWTUtils.java |  595 +++++++++++
 .../egit/ui/internal/actions/BranchAction.java     |    4 +-
 .../egit/ui/internal/actions/Disconnect.java       |    4 +-
 .../egit/ui/internal/actions/ResetAction.java      |    4 +-
 .../decorators/GitLightweightDecorator.java        | 1062 ++++++++++++++++++++
 .../internal/decorators/GitResourceDecorator.java  |  454 ---------
 .../internal/decorators/IDecoratableResource.java  |   93 ++
 .../preferences/GitDecoratorPreferencePage.java    |  911 +++++++++++++++++
 .../src/org/spearce/egit/ui/uitext.properties      |   35 +-
 30 files changed, 3230 insertions(+), 495 deletions(-)
 create mode 100644 org.spearce.egit.core/src/org/spearce/egit/core/GitException.java
 create mode 100644 org.spearce.egit.core/src/org/spearce/egit/core/internal/util/ExceptionCollector.java
 delete mode 100644 org.spearce.egit.ui/icons/ovr/assumevalid.gif
 delete mode 100644 org.spearce.egit.ui/icons/ovr/pending_add.gif
 delete mode 100644 org.spearce.egit.ui/icons/ovr/pending_remove.gif
 delete mode 100644 org.spearce.egit.ui/icons/ovr/shared.gif
 create mode 100644 org.spearce.egit.ui/icons/ovr/staged.gif
 create mode 100644 org.spearce.egit.ui/icons/ovr/staged_added.gif
 create mode 100644 org.spearce.egit.ui/icons/ovr/staged_removed.gif
 create mode 100644 org.spearce.egit.ui/icons/ovr/untracked.gif
 create mode 100644 org.spearce.egit.ui/src/org/spearce/egit/ui/internal/SWTUtils.java
 create mode 100644 org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitLightweightDecorator.java
 delete mode 100644 org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitResourceDecorator.java
 create mode 100644 org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/IDecoratableResource.java
 create mode 100644 org.spearce.egit.ui/src/org/spearce/egit/ui/internal/preferences/GitDecoratorPreferencePage.java